Abstract

In this work, a facile and effective method for controlled-layer and large-area MoS2 films encapsulated Au nanoparticle hybrids is developed. With accurate Ar plasma treatment time control, the large-area MoS2 layers can be obtained from monolayer to trilayer. The fabricated MoS2@Au NPs with higher surface area exhibit excellent Raman enhanced effect for aromatic organic molecules (rhodamine 6G and crystal violet) and achieve the best when the monolayer MoS2@AuNPs was obtained. The limit of detection is found to be as low as 1 × 10−10 M. The MoS2@AuNPs was characterized by SEM, EDS, AFM, Raman spectroscopy, UV-Vis, XRD and HRTEM.

© 2016 Optical Society of America

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  2. M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
    [Crossref] [PubMed]
  3. A. Kuc, N. Zibouche, and T. Heine, “Influence of quantum confinement on the electronic structure of the transition metal sulfide TS2,” Phys. Rev. B 83(24), 245213 (2011).
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  4. A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
    [Crossref] [PubMed]
  5. A. H. Castro Neto, F. Guinea, N. M. R. Peres, K. S. Novoselov, and A. K. Geim, “The electronic properties of graphene,” Rev. Mod. Phys. 81(1), 109–162 (2009).
    [Crossref]
  6. B. Radisavljevic, A. Radenovic, J. Brivio, V. Giacometti, and A. Kis, “Single-layer MoS2 transistors,” Nat. Nanotechnol. 6(3), 147–150 (2011).
    [Crossref] [PubMed]
  7. K. F. Mak, C. Lee, J. Hone, J. Shan, and T. F. Heinz, “Atomically thin MoS2: a new direct-gap semiconductor,” Phys. Rev. Lett. 105(13), 136805 (2010).
    [Crossref] [PubMed]
  8. S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
    [Crossref] [PubMed]
  9. K. F. Mak, K. He, J. Shan, and T. F. Heinz, “Control of valley polarization in monolayer MoS2 by optical helicity,” Nat. Nanotechnol. 7(8), 494–498 (2012).
    [Crossref] [PubMed]
  10. Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
    [Crossref] [PubMed]
  11. M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
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  13. Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
    [Crossref] [PubMed]
  14. F. Huang and J. J. Baumberg, “Actively tuned plasmons on elastomerically driven Au nanoparticle dimers,” Nano Lett. 10(5), 1787–1792 (2010).
    [Crossref] [PubMed]
  15. T. F. Jaramillo, K. P. Jørgensen, J. Bonde, J. H. Nielsen, S. Horch, and I. Chorkendorff, “Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts,” Science 317(5834), 100–102 (2007).
    [Crossref] [PubMed]
  16. X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
    [PubMed]
  17. Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
    [Crossref] [PubMed]
  18. T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
    [Crossref] [PubMed]
  19. A. Campion and P. Kambhampati, “Surface-enhanced Raman scattering,” Chem. Soc. Rev. 27(4), 241–250 (1998).
    [Crossref]
  20. P. L. Stiles, J. A. Dieringer, N. C. Shah, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Annu. Rev. Anal. Chem. (Palo Alto, Calif.) 1(1), 601–626 (2008).
    [Crossref] [PubMed]
  21. G. A. Baker and D. S. Moore, “Progress in plasmonic engineering of surface-enhanced Raman-scattering substrates toward ultra-trace analysis,” Anal. Bioanal. Chem. 382(8), 1751–1770 (2005).
    [Crossref] [PubMed]
  22. M. Moskovits, “Surface‐enhanced Raman spectroscopy: a brief retrospective,” J. Raman Spectrosc. 36(36), 485–496 (2005).
    [Crossref]
  23. C. L. Haynes, C. R. Yonzon, X. Zhang, and R. P. Van Duyne, “Surface‐enhanced Raman sensors: early history and the development of sensors for quantitative biowarfare agent and glucose detection,” J. Raman Spectrosc. 36(6–7), 471–484 (2005).
    [Crossref]
  24. K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
    [Crossref] [PubMed]
  25. S. J. Lee, Z. Guan, H. Xu, and M. Moskovits, “Surface-enhanced Raman spectroscopy and nanogeometry: The plasmonic origin of SERS,” J. Phys. Chem. C 111(49), 17985–17988 (2007).
    [Crossref]
  26. J. Zheng, X. Li, R. Gu, and T. Lu, “Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode,” J. Phys. Chem. B 106(5), 1019–1023 (2002).
    [Crossref]
  27. G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
    [Crossref]
  28. H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
    [Crossref]
  29. S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
    [Crossref] [PubMed]
  30. J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
    [Crossref] [PubMed]
  31. P. Joensen, E. D. Crozier, N. Alberding, and R. F. Frindt, “A study of single-layer and restacked MoS2 by X-ray diffraction and X-ray absorption spectroscopy,” Solid State Phys. 20(26), 4043–4053 (2000).
    [Crossref]
  32. L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
    [Crossref] [PubMed]
  33. E. C. Le Ru, C. Galloway, and P. G. Etchegoin, “On the connection between optical absorption/extinction and SERS enhancements,” Phys. Chem. Chem. Phys. 8(26), 3083–3087 (2006).
    [Crossref] [PubMed]
  34. X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
    [Crossref] [PubMed]
  35. A. Castellanos-Gomez, N. Agraït, and G. Rubio-Bollinger, “Optical identification of atomically thin dichalcogenide crystals,” Appl. Phys. Lett. 96(21), 213116 (2010).
    [Crossref]

2015 (1)

J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
[Crossref] [PubMed]

2014 (3)

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
[Crossref] [PubMed]

2013 (4)

M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
[Crossref] [PubMed]

X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
[PubMed]

Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
[Crossref] [PubMed]

T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
[Crossref] [PubMed]

2012 (5)

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

K. F. Mak, K. He, J. Shan, and T. F. Heinz, “Control of valley polarization in monolayer MoS2 by optical helicity,” Nat. Nanotechnol. 7(8), 494–498 (2012).
[Crossref] [PubMed]

H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
[Crossref]

Q. H. Wang, K. Kalantar-Zadeh, A. Kis, J. N. Coleman, and M. S. Strano, “Electronics and optoelectronics of two-dimensional transition metal dichalcogenides,” Nat. Nanotechnol. 7(11), 699–712 (2012).
[Crossref] [PubMed]

2011 (4)

G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
[Crossref]

M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
[PubMed]

B. Radisavljevic, A. Radenovic, J. Brivio, V. Giacometti, and A. Kis, “Single-layer MoS2 transistors,” Nat. Nanotechnol. 6(3), 147–150 (2011).
[Crossref] [PubMed]

A. Kuc, N. Zibouche, and T. Heine, “Influence of quantum confinement on the electronic structure of the transition metal sulfide TS2,” Phys. Rev. B 83(24), 245213 (2011).
[Crossref]

2010 (6)

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

K. F. Mak, C. Lee, J. Hone, J. Shan, and T. F. Heinz, “Atomically thin MoS2: a new direct-gap semiconductor,” Phys. Rev. Lett. 105(13), 136805 (2010).
[Crossref] [PubMed]

Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
[Crossref] [PubMed]

F. Huang and J. J. Baumberg, “Actively tuned plasmons on elastomerically driven Au nanoparticle dimers,” Nano Lett. 10(5), 1787–1792 (2010).
[Crossref] [PubMed]

X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

A. Castellanos-Gomez, N. Agraït, and G. Rubio-Bollinger, “Optical identification of atomically thin dichalcogenide crystals,” Appl. Phys. Lett. 96(21), 213116 (2010).
[Crossref]

2009 (1)

A. H. Castro Neto, F. Guinea, N. M. R. Peres, K. S. Novoselov, and A. K. Geim, “The electronic properties of graphene,” Rev. Mod. Phys. 81(1), 109–162 (2009).
[Crossref]

2008 (2)

K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
[Crossref] [PubMed]

P. L. Stiles, J. A. Dieringer, N. C. Shah, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Annu. Rev. Anal. Chem. (Palo Alto, Calif.) 1(1), 601–626 (2008).
[Crossref] [PubMed]

2007 (2)

S. J. Lee, Z. Guan, H. Xu, and M. Moskovits, “Surface-enhanced Raman spectroscopy and nanogeometry: The plasmonic origin of SERS,” J. Phys. Chem. C 111(49), 17985–17988 (2007).
[Crossref]

T. F. Jaramillo, K. P. Jørgensen, J. Bonde, J. H. Nielsen, S. Horch, and I. Chorkendorff, “Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts,” Science 317(5834), 100–102 (2007).
[Crossref] [PubMed]

2006 (1)

E. C. Le Ru, C. Galloway, and P. G. Etchegoin, “On the connection between optical absorption/extinction and SERS enhancements,” Phys. Chem. Chem. Phys. 8(26), 3083–3087 (2006).
[Crossref] [PubMed]

2005 (3)

G. A. Baker and D. S. Moore, “Progress in plasmonic engineering of surface-enhanced Raman-scattering substrates toward ultra-trace analysis,” Anal. Bioanal. Chem. 382(8), 1751–1770 (2005).
[Crossref] [PubMed]

M. Moskovits, “Surface‐enhanced Raman spectroscopy: a brief retrospective,” J. Raman Spectrosc. 36(36), 485–496 (2005).
[Crossref]

C. L. Haynes, C. R. Yonzon, X. Zhang, and R. P. Van Duyne, “Surface‐enhanced Raman sensors: early history and the development of sensors for quantitative biowarfare agent and glucose detection,” J. Raman Spectrosc. 36(6–7), 471–484 (2005).
[Crossref]

2002 (1)

J. Zheng, X. Li, R. Gu, and T. Lu, “Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode,” J. Phys. Chem. B 106(5), 1019–1023 (2002).
[Crossref]

2000 (1)

P. Joensen, E. D. Crozier, N. Alberding, and R. F. Frindt, “A study of single-layer and restacked MoS2 by X-ray diffraction and X-ray absorption spectroscopy,” Solid State Phys. 20(26), 4043–4053 (2000).
[Crossref]

1998 (1)

A. Campion and P. Kambhampati, “Surface-enhanced Raman scattering,” Chem. Soc. Rev. 27(4), 241–250 (1998).
[Crossref]

Ackermann, K.

K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
[Crossref] [PubMed]

Agraït, N.

A. Castellanos-Gomez, N. Agraït, and G. Rubio-Bollinger, “Optical identification of atomically thin dichalcogenide crystals,” Appl. Phys. Lett. 96(21), 213116 (2010).
[Crossref]

Alberding, N.

P. Joensen, E. D. Crozier, N. Alberding, and R. F. Frindt, “A study of single-layer and restacked MoS2 by X-ray diffraction and X-ray absorption spectroscopy,” Solid State Phys. 20(26), 4043–4053 (2000).
[Crossref]

Baillargeat, D.

H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
[Crossref]

Baker, G. A.

G. A. Baker and D. S. Moore, “Progress in plasmonic engineering of surface-enhanced Raman-scattering substrates toward ultra-trace analysis,” Anal. Bioanal. Chem. 382(8), 1751–1770 (2005).
[Crossref] [PubMed]

Bao, S.

X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
[PubMed]

Baumberg, J. J.

F. Huang and J. J. Baumberg, “Actively tuned plasmons on elastomerically driven Au nanoparticle dimers,” Nano Lett. 10(5), 1787–1792 (2010).
[Crossref] [PubMed]

Berry, V.

T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
[Crossref] [PubMed]

Bonde, J.

T. F. Jaramillo, K. P. Jørgensen, J. Bonde, J. H. Nielsen, S. Horch, and I. Chorkendorff, “Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts,” Science 317(5834), 100–102 (2007).
[Crossref] [PubMed]

Brivio, J.

B. Radisavljevic, A. Radenovic, J. Brivio, V. Giacometti, and A. Kis, “Single-layer MoS2 transistors,” Nat. Nanotechnol. 6(3), 147–150 (2011).
[Crossref] [PubMed]

Campion, A.

A. Campion and P. Kambhampati, “Surface-enhanced Raman scattering,” Chem. Soc. Rev. 27(4), 241–250 (1998).
[Crossref]

Cao, L.

Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
[Crossref] [PubMed]

Castellanos-Gomez, A.

A. Castellanos-Gomez, N. Agraït, and G. Rubio-Bollinger, “Optical identification of atomically thin dichalcogenide crystals,” Appl. Phys. Lett. 96(21), 213116 (2010).
[Crossref]

Castro Neto, A. H.

A. H. Castro Neto, F. Guinea, N. M. R. Peres, K. S. Novoselov, and A. K. Geim, “The electronic properties of graphene,” Rev. Mod. Phys. 81(1), 109–162 (2009).
[Crossref]

Chao, J.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Chen, S.

Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
[Crossref] [PubMed]

Chhowalla, M.

M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
[Crossref] [PubMed]

Chim, C. Y.

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

Choi, J. Y.

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

Choi, W.

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

Chorkendorff, I.

T. F. Jaramillo, K. P. Jørgensen, J. Bonde, J. H. Nielsen, S. Horch, and I. Chorkendorff, “Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts,” Science 317(5834), 100–102 (2007).
[Crossref] [PubMed]

Cialla, D.

K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
[Crossref] [PubMed]

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X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
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S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
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Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
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Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
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X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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P. Joensen, E. D. Crozier, N. Alberding, and R. F. Frindt, “A study of single-layer and restacked MoS2 by X-ray diffraction and X-ray absorption spectroscopy,” Solid State Phys. 20(26), 4043–4053 (2000).
[Crossref]

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T. F. Jaramillo, K. P. Jørgensen, J. Bonde, J. H. Nielsen, S. Horch, and I. Chorkendorff, “Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts,” Science 317(5834), 100–102 (2007).
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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
[PubMed]

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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

Kim, J.

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
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Kim, K.

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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Q. H. Wang, K. Kalantar-Zadeh, A. Kis, J. N. Coleman, and M. S. Strano, “Electronics and optoelectronics of two-dimensional transition metal dichalcogenides,” Nat. Nanotechnol. 7(11), 699–712 (2012).
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B. Radisavljevic, A. Radenovic, J. Brivio, V. Giacometti, and A. Kis, “Single-layer MoS2 transistors,” Nat. Nanotechnol. 6(3), 147–150 (2011).
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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

Kuc, A.

A. Kuc, N. Zibouche, and T. Heine, “Influence of quantum confinement on the electronic structure of the transition metal sulfide TS2,” Phys. Rev. B 83(24), 245213 (2011).
[Crossref]

Le Ru, E. C.

E. C. Le Ru, C. Galloway, and P. G. Etchegoin, “On the connection between optical absorption/extinction and SERS enhancements,” Phys. Chem. Chem. Phys. 8(26), 3083–3087 (2006).
[Crossref] [PubMed]

Lee, C.

K. F. Mak, C. Lee, J. Hone, J. Shan, and T. F. Heinz, “Atomically thin MoS2: a new direct-gap semiconductor,” Phys. Rev. Lett. 105(13), 136805 (2010).
[Crossref] [PubMed]

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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

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S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

Lee, P. S.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

Lee, S. J.

S. J. Lee, Z. Guan, H. Xu, and M. Moskovits, “Surface-enhanced Raman spectroscopy and nanogeometry: The plasmonic origin of SERS,” J. Phys. Chem. C 111(49), 17985–17988 (2007).
[Crossref]

Lee, S. Y.

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

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H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
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M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
[Crossref] [PubMed]

Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
[Crossref] [PubMed]

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

Li, T.

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

Li, X.

J. Zheng, X. Li, R. Gu, and T. Lu, “Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode,” J. Phys. Chem. B 106(5), 1019–1023 (2002).
[Crossref]

Li, Y.

Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
[Crossref] [PubMed]

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X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

Liu, B.

J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
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J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
[Crossref] [PubMed]

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S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

Liu, L.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

Liu, X.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Liu, Z.

X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
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G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
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M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
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J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
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M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
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G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
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J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
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J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
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J. Zheng, X. Li, R. Gu, and T. Lu, “Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode,” J. Phys. Chem. B 106(5), 1019–1023 (2002).
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Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
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K. F. Mak, K. He, J. Shan, and T. F. Heinz, “Control of valley polarization in monolayer MoS2 by optical helicity,” Nat. Nanotechnol. 7(8), 494–498 (2012).
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K. F. Mak, C. Lee, J. Hone, J. Shan, and T. F. Heinz, “Atomically thin MoS2: a new direct-gap semiconductor,” Phys. Rev. Lett. 105(13), 136805 (2010).
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S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
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K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
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M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
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K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
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M. Moskovits, “Surface‐enhanced Raman spectroscopy: a brief retrospective,” J. Raman Spectrosc. 36(36), 485–496 (2005).
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M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
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M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
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T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
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K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
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X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
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K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
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K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
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P. L. Stiles, J. A. Dieringer, N. C. Shah, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Annu. Rev. Anal. Chem. (Palo Alto, Calif.) 1(1), 601–626 (2008).
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K. F. Mak, K. He, J. Shan, and T. F. Heinz, “Control of valley polarization in monolayer MoS2 by optical helicity,” Nat. Nanotechnol. 7(8), 494–498 (2012).
[Crossref] [PubMed]

K. F. Mak, C. Lee, J. Hone, J. Shan, and T. F. Heinz, “Atomically thin MoS2: a new direct-gap semiconductor,” Phys. Rev. Lett. 105(13), 136805 (2010).
[Crossref] [PubMed]

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Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
[Crossref] [PubMed]

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L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

Shi, Y.

Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
[Crossref] [PubMed]

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M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
[Crossref] [PubMed]

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S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Song, S.

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

Sow, C. H.

J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
[Crossref] [PubMed]

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A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

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T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
[Crossref] [PubMed]

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Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
[Crossref] [PubMed]

Stiles, P. L.

P. L. Stiles, J. A. Dieringer, N. C. Shah, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Annu. Rev. Anal. Chem. (Palo Alto, Calif.) 1(1), 601–626 (2008).
[Crossref] [PubMed]

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Q. H. Wang, K. Kalantar-Zadeh, A. Kis, J. N. Coleman, and M. S. Strano, “Electronics and optoelectronics of two-dimensional transition metal dichalcogenides,” Nat. Nanotechnol. 7(11), 699–712 (2012).
[Crossref] [PubMed]

Su, S.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

Sun, L.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

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H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
[Crossref]

Teguh, J. S.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

Tok, E. S.

J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
[Crossref] [PubMed]

Van Duyne, R. P.

P. L. Stiles, J. A. Dieringer, N. C. Shah, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Annu. Rev. Anal. Chem. (Palo Alto, Calif.) 1(1), 601–626 (2008).
[Crossref] [PubMed]

C. L. Haynes, C. R. Yonzon, X. Zhang, and R. P. Van Duyne, “Surface‐enhanced Raman sensors: early history and the development of sensors for quantitative biowarfare agent and glucose detection,” J. Raman Spectrosc. 36(6–7), 471–484 (2005).
[Crossref]

Wang, D.

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

Wang, F.

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

Wang, L.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Wang, M.

X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
[PubMed]

Wang, Q. H.

Q. H. Wang, K. Kalantar-Zadeh, A. Kis, J. N. Coleman, and M. S. Strano, “Electronics and optoelectronics of two-dimensional transition metal dichalcogenides,” Nat. Nanotechnol. 7(11), 699–712 (2012).
[Crossref] [PubMed]

Waterhouse, G. I. N.

M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
[PubMed]

Wu, S.

G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
[Crossref]

Xie, L.

X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

Xu, H.

X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

S. J. Lee, Z. Guan, H. Xu, and M. Moskovits, “Surface-enhanced Raman spectroscopy and nanogeometry: The plasmonic origin of SERS,” J. Phys. Chem. C 111(49), 17985–17988 (2007).
[Crossref]

Xu, Z.

Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
[Crossref] [PubMed]

Yan, J.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
[Crossref] [PubMed]

Yang, H. Y.

Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
[Crossref] [PubMed]

Yang, J.

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

Yang, W.

Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
[Crossref] [PubMed]

Yap, C. C. R.

H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
[Crossref]

Yeow, E. K.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

Yin, Z.

G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
[Crossref]

Yonzon, C. R.

C. L. Haynes, C. R. Yonzon, X. Zhang, and R. P. Van Duyne, “Surface‐enhanced Raman sensors: early history and the development of sensors for quantitative biowarfare agent and glucose detection,” J. Raman Spectrosc. 36(6–7), 471–484 (2005).
[Crossref]

Yoo, J. B.

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
[Crossref] [PubMed]

Yu, S. F.

Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
[Crossref] [PubMed]

Yu, Y.

Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
[Crossref] [PubMed]

Yuwen, L.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Zeng, Z.

X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
[PubMed]

Zhan, D.

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
[Crossref] [PubMed]

Zhang, C.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Zhang, H.

X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
[PubMed]

M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
[Crossref] [PubMed]

G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
[Crossref]

X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

Zhang, J.

X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
[Crossref] [PubMed]

Zhang, Q.

H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
[Crossref]

Zhang, X.

C. L. Haynes, C. R. Yonzon, X. Zhang, and R. P. Van Duyne, “Surface‐enhanced Raman sensors: early history and the development of sensors for quantitative biowarfare agent and glucose detection,” J. Raman Spectrosc. 36(6–7), 471–484 (2005).
[Crossref]

Zhang, Y.

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

Zheng, J.

J. Zheng, X. Li, R. Gu, and T. Lu, “Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode,” J. Phys. Chem. B 106(5), 1019–1023 (2002).
[Crossref]

Zibouche, N.

A. Kuc, N. Zibouche, and T. Heine, “Influence of quantum confinement on the electronic structure of the transition metal sulfide TS2,” Phys. Rev. B 83(24), 245213 (2011).
[Crossref]

Zuo, X.

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

ACS Appl. Mater. Interfaces (1)

S. Su, C. Zhang, L. Yuwen, J. Chao, X. Zuo, X. Liu, C. Song, C. Fan, and L. Wang, “Creating SERS hot spots on MoS2 nanosheets with in situ grown gold nanoparticles,” ACS Appl. Mater. Interfaces 6(21), 18735–18741 (2014).
[Crossref] [PubMed]

Adv. Funct. Mater. (1)

H. Li, Q. Zhang, C. C. R. Yap, B. K. Tay, T. H. T. Edwin, A. Olivier, and D. Baillargeat, “From bulk to monolayer MoS2: evolution of Raman scattering,” Adv. Funct. Mater. 22(7), 1385–1390 (2012).
[Crossref]

Anal. Bioanal. Chem. (2)

G. A. Baker and D. S. Moore, “Progress in plasmonic engineering of surface-enhanced Raman-scattering substrates toward ultra-trace analysis,” Anal. Bioanal. Chem. 382(8), 1751–1770 (2005).
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K. Hering, D. Cialla, K. Ackermann, T. Dörfer, R. Möller, H. Schneidewind, R. Mattheis, W. Fritzsche, P. Rösch, and J. Popp, “SERS: a versatile tool in chemical and biochemical diagnostics,” Anal. Bioanal. Chem. 390(1), 113–124 (2008).
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Anal. Chem. (1)

S. He, K. K. Liu, S. Su, J. Yan, X. Mao, D. Wang, Y. He, L. J. Li, S. Song, and C. Fan, “Graphene-based high-efficiency surface-enhanced Raman scattering-active platform for sensitive and multiplex DNA detection,” Anal. Chem. 84(10), 4622–4627 (2012).
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Annu. Rev. Anal. Chem. (Palo Alto, Calif.) (1)

P. L. Stiles, J. A. Dieringer, N. C. Shah, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Annu. Rev. Anal. Chem. (Palo Alto, Calif.) 1(1), 601–626 (2008).
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Appl. Phys. Lett. (1)

A. Castellanos-Gomez, N. Agraït, and G. Rubio-Bollinger, “Optical identification of atomically thin dichalcogenide crystals,” Appl. Phys. Lett. 96(21), 213116 (2010).
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Chem. Sci. (Camb.) (1)

G. Lu, H. Li, C. Liusman, Z. Yin, S. Wu, and H. Zhang, “Surface enhanced Raman scattering of Ag or Au nanoparticle-decorated reduced graphene oxide for detection of aromatic molecules,” Chem. Sci. (Camb.) 2(9), 1817–1821 (2011).
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Chem. Soc. Rev. (1)

A. Campion and P. Kambhampati, “Surface-enhanced Raman scattering,” Chem. Soc. Rev. 27(4), 241–250 (1998).
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J. Am. Chem. Soc. (1)

Y. C. Lu, Z. Xu, H. A. Gasteiger, S. Chen, K. Hamad-Schifferli, and Y. Shao-Horn, “Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries,” J. Am. Chem. Soc. 132(35), 12170–12171 (2010).
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J. Phys. Chem. B (1)

J. Zheng, X. Li, R. Gu, and T. Lu, “Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode,” J. Phys. Chem. B 106(5), 1019–1023 (2002).
[Crossref]

J. Phys. Chem. C (1)

S. J. Lee, Z. Guan, H. Xu, and M. Moskovits, “Surface-enhanced Raman spectroscopy and nanogeometry: The plasmonic origin of SERS,” J. Phys. Chem. C 111(49), 17985–17988 (2007).
[Crossref]

J. Raman Spectrosc. (2)

M. Moskovits, “Surface‐enhanced Raman spectroscopy: a brief retrospective,” J. Raman Spectrosc. 36(36), 485–496 (2005).
[Crossref]

C. L. Haynes, C. R. Yonzon, X. Zhang, and R. P. Van Duyne, “Surface‐enhanced Raman sensors: early history and the development of sensors for quantitative biowarfare agent and glucose detection,” J. Raman Spectrosc. 36(6–7), 471–484 (2005).
[Crossref]

Mol. Ther. (1)

X. Huang, Z. Zeng, S. Bao, M. Wang, X. Qi, Z. Fan, and H. Zhang, “Solution-phase epitaxial growth of noble metal nanostructures on dispersible single-layer molybdenum disulfide nanosheets,” Mol. Ther. 4, 1444 (2013).
[PubMed]

Nano Lett. (5)

Y. Yu, S. Y. Huang, Y. Li, S. N. Steinmann, W. Yang, and L. Cao, “Layer-dependent electrocatalysis of MoS2 for hydrogen evolution,” Nano Lett. 14(2), 553–558 (2014).
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F. Huang and J. J. Baumberg, “Actively tuned plasmons on elastomerically driven Au nanoparticle dimers,” Nano Lett. 10(5), 1787–1792 (2010).
[Crossref] [PubMed]

A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, “Emerging photoluminescence in monolayer MoS2,” Nano Lett. 10(4), 1271–1275 (2010).
[Crossref] [PubMed]

T. S. Sreeprasad, P. Nguyen, N. Kim, and V. Berry, “Controlled, defect-guided, metal-nanoparticle incorporation onto MoS2 via chemical and microwave routes: electrical, thermal, and structural properties,” Nano Lett. 13(9), 4434–4441 (2013).
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X. Ling, L. Xie, Y. Fang, H. Xu, H. Zhang, J. Kong, M. S. Dresselhaus, J. Zhang, and Z. Liu, “Can graphene be used as a substrate for Raman enhancement?” Nano Lett. 10(2), 553–561 (2010).
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Nat. Chem. (2)

M. Chhowalla, H. S. Shin, G. Eda, L. J. Li, K. P. Loh, and H. Zhang, “The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets,” Nat. Chem. 5(4), 263–275 (2013).
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M. Murdoch, G. I. N. Waterhouse, M. A. Nadeem, J. B. Metson, M. A. Keane, R. F. Howe, J. Llorca, and H. Idriss, “The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles,” Nat. Chem. 3(6), 489–492 (2011).
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Nat. Commun. (1)

S. Kim, A. Konar, W. S. Hwang, J. H. Lee, J. Lee, J. Yang, C. Jung, H. Kim, J. B. Yoo, J. Y. Choi, Y. W. Jin, S. Y. Lee, D. Jena, W. Choi, and K. Kim, “High-mobility and low-power thin-film transistors based on multilayer MoS2 crystals,” Nat. Commun. 3(8), 2543–2544 (2012).
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Nat. Nanotechnol. (3)

K. F. Mak, K. He, J. Shan, and T. F. Heinz, “Control of valley polarization in monolayer MoS2 by optical helicity,” Nat. Nanotechnol. 7(8), 494–498 (2012).
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B. Radisavljevic, A. Radenovic, J. Brivio, V. Giacometti, and A. Kis, “Single-layer MoS2 transistors,” Nat. Nanotechnol. 6(3), 147–150 (2011).
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Q. H. Wang, K. Kalantar-Zadeh, A. Kis, J. N. Coleman, and M. S. Strano, “Electronics and optoelectronics of two-dimensional transition metal dichalcogenides,” Nat. Nanotechnol. 7(11), 699–712 (2012).
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Phys. Chem. Chem. Phys. (1)

E. C. Le Ru, C. Galloway, and P. G. Etchegoin, “On the connection between optical absorption/extinction and SERS enhancements,” Phys. Chem. Chem. Phys. 8(26), 3083–3087 (2006).
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Phys. Rev. B (1)

A. Kuc, N. Zibouche, and T. Heine, “Influence of quantum confinement on the electronic structure of the transition metal sulfide TS2,” Phys. Rev. B 83(24), 245213 (2011).
[Crossref]

Phys. Rev. Lett. (1)

K. F. Mak, C. Lee, J. Hone, J. Shan, and T. F. Heinz, “Atomically thin MoS2: a new direct-gap semiconductor,” Phys. Rev. Lett. 105(13), 136805 (2010).
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Rev. Mod. Phys. (1)

A. H. Castro Neto, F. Guinea, N. M. R. Peres, K. S. Novoselov, and A. K. Geim, “The electronic properties of graphene,” Rev. Mod. Phys. 81(1), 109–162 (2009).
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Sci. Rep. (1)

Y. Shi, J. K. Huang, L. Jin, Y. T. Hsu, S. F. Yu, L. J. Li, and H. Y. Yang, “Selective decoration of Au nanoparticles on monolayer MoS2 single crystals,” Sci. Rep. 3, 1839 (2013).
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Science (1)

T. F. Jaramillo, K. P. Jørgensen, J. Bonde, J. H. Nielsen, S. Horch, and I. Chorkendorff, “Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts,” Science 317(5834), 100–102 (2007).
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Small (2)

L. Sun, H. Hu, D. Zhan, J. Yan, L. Liu, J. S. Teguh, E. K. Yeow, P. S. Lee, and Z. Shen, “Plasma modified MoS(2) nanoflakes for surface enhanced raman scattering,” Small 10(6), 1090–1095 (2014).
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J. Lu, J. H. Lu, H. Liu, B. Liu, L. Gong, E. S. Tok, K. P. Loh, and C. H. Sow, “Microlandscaping of Au nanoparticles on few-layer MoS2 films for chemical sensing,” Small 11(15), 1792–1800 (2015).
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Solid State Phys. (1)

P. Joensen, E. D. Crozier, N. Alberding, and R. F. Frindt, “A study of single-layer and restacked MoS2 by X-ray diffraction and X-ray absorption spectroscopy,” Solid State Phys. 20(26), 4043–4053 (2000).
[Crossref]

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Figures (8)

Fig. 1
Fig. 1 Schematic illustration of the process for the synthesis of the MoS2@Au NPs hybrids for SERS.
Fig. 2
Fig. 2 (a) AFM image of the Au film and its corresponding height profile (inset) (b) Raman spectrum of MoS2@Au NPs (red line) and MoS2 on SiO2 (black line). (c) SEM image of MoS2@Au NPs at a low magnification. (d) SEM image of MoS2@Au NPs at a higher magnification. Inset: The size histograms of MoS2@Au NPs. (e) EDX data of the same sample. (f) AFM images of the MoS2@Au NPs substrates.
Fig. 3
Fig. 3 (a) Raman spectrum of MoS2@Au NPs after Ar plasma treatment (red line) and MoS2@Au NPs (black line). (b) XRD patterns for the MoS2@Au NPs substrates after Ar plasma treatment.
Fig. 4
Fig. 4 (a) Raman spectra of the MoS2@Au NPs after Ar plasma irradiation with different time. (b) the scanning Raman A1g band mappings of the MoS2@Au NPs after 20 min Ar plasma treatment. HRTEM images of cross section of bilayer (c) and single-layer (d) MoS2 film grown on Au NPs.
Fig. 5
Fig. 5 (a) the corresponding UV-Vis absorption spectra of Au NPs (red), trilayer-MoS2@Au NPs (green), bilayer-MoS2@Au NPs (black) and monolayer MoS2@Au NPs (purple). (b) SERS performance of monolayer MoS2@Au NPs (red line) and Au NPs (black line) using R6G as probe molecules.
Fig. 6
Fig. 6 (a) Raman spectra of R6G (10−5) on monolayer-MoS2@Au NPs, bilayer-MoS2@Au NPs and trilayer-MoS2@Au NPs respectively. The x-z views of electric field distributions on the SiO2 substrate with 35 nm MoS2 @Au NPs and 10 nm gap. (b) Au NPs covered with monolayer MoS2. (c) Au NPs covered with bilayer MoS2. (d) Au NPs covered with trilayer MoS2.
Fig. 7
Fig. 7 Raman spectra of (a) R6G (10−6 M) and (b) CV (10−6 M) on SiO2, MoS2/SiO2 and MoS2@Au NPs substrates, respectively. SERS spectra of (c) R6G and (d) CV at nine different positions on the same MoS2@Au NPs substrate.
Fig. 8
Fig. 8 show the Raman spectra of (a) R6G and (b) CV molecules at concentration of 1 × 10−10 M and 1 × 10−9 M respectively. (c) SERS spectra of the R6G without (black) and with (red) the oxidation treatment. (d) XRD result of the MoS2@Au NPs without (black) and with (red) the oxidation treatment.

Tables (1)

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Table 1 Results of UV-Vis analysis for samples

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