Abstract

Here we report excitonic improvement in color-converting colloidal nanocrystal powders enabled by co-integrating nonpolar green- and red-emitting nanocrystal energy transfer pairs into a single LiCl salt matrix. This leads to nonradiative energy transfer (NRET) between the co-integrated nanocrystals in the host matrix. Here we systematically studied the resulting NRET process by varying donor and acceptor concentrations in the powders. We observed that NRET is a strong function of both of the nanocrystal concentrations and that NRET efficiency increases with increasing acceptor concentration. Nevertheless, with increasing donor concentration in the powders, NRET efficiency was found to first increase (up to a maximum level of 53.9%) but then to decrease. As a device demonstrator, we employed these NRET-improved nanocrystal powders as color-converters on blue light-emitting diodes (LEDs), with the resulting hybrid LED exhibiting a luminous efficiency >70 lm/Welect. The proposed excitonic nanocrystal powders potentially hold great promise for quality lighting and color enrichment applications.

© 2015 Optical Society of America

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References

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  1. T. Erdem and H. V. Demir, “Semiconductor nanocrystals as rare-earth alternatives,” Nat. Photonics 5(3), 126 (2011).
    [Crossref]
  2. X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
    [Crossref] [PubMed]
  3. J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
    [Crossref] [PubMed]
  4. E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
    [Crossref] [PubMed]
  5. T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
    [Crossref]
  6. V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
    [Crossref] [PubMed]
  7. P. V. Kamat, “Quantum dot solar cells. Semiconductor nanocrystals as light harvesters,” J. Phys. Chem. C 112(48), 18737–18753 (2008).
    [Crossref]
  8. T. Erdem, S. Nizamoglu, X. W. Sun, and H. V. Demir, “A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores,” Opt. Express 18(1), 340–347 (2010).
    [Crossref] [PubMed]
  9. S. Nizamoglu, T. Erdem, X. W. Sun, and H. V. Demir, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering,” Opt. Lett. 35(20), 3372–3374 (2010).
    [Crossref] [PubMed]
  10. T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
    [Crossref]
  11. T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
    [Crossref]
  12. T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
    [Crossref] [PubMed]
  13. M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
    [Crossref]
  14. T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
    [Crossref]
  15. Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
    [Crossref] [PubMed]
  16. T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
    [Crossref] [PubMed]
  17. T. Erdem, S. Nizamoglu, and H. V. Demir, “Computational study of power conversion and luminous efficiency performance for semiconductor quantum dot nanophosphors on light-emitting diodes,” Opt. Express 20(3), 3275–3295 (2012).
    [Crossref] [PubMed]
  18. P. Zhong, G. He, and M. Zhang, “Optimal spectra of white light-emitting diodes using quantum dot nanophosphors,” Opt. Express 20(8), 9122–9134 (2012).
    [Crossref] [PubMed]
  19. W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
    [Crossref]
  20. O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
    [Crossref] [PubMed]
  21. K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
    [Crossref]
  22. R. Koeppe and N. S. Sariciftci, “Photoinduced charge and energy transfer involving fullerene derivatives,” Photochem. Photobiol. Sci. 5(12), 1122–1131 (2006).
    [Crossref] [PubMed]
  23. S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
    [Crossref]

2015 (3)

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

2014 (3)

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

2013 (3)

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
[Crossref] [PubMed]

2012 (3)

2011 (2)

T. Erdem and H. V. Demir, “Semiconductor nanocrystals as rare-earth alternatives,” Nat. Photonics 5(3), 126 (2011).
[Crossref]

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

2010 (4)

T. Erdem, S. Nizamoglu, X. W. Sun, and H. V. Demir, “A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores,” Opt. Express 18(1), 340–347 (2010).
[Crossref] [PubMed]

S. Nizamoglu, T. Erdem, X. W. Sun, and H. V. Demir, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering,” Opt. Lett. 35(20), 3372–3374 (2010).
[Crossref] [PubMed]

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
[Crossref]

2009 (1)

V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
[Crossref] [PubMed]

2008 (2)

P. V. Kamat, “Quantum dot solar cells. Semiconductor nanocrystals as light harvesters,” J. Phys. Chem. C 112(48), 18737–18753 (2008).
[Crossref]

W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
[Crossref]

2006 (1)

R. Koeppe and N. S. Sariciftci, “Photoinduced charge and energy transfer involving fullerene derivatives,” Photochem. Photobiol. Sci. 5(12), 1122–1131 (2006).
[Crossref] [PubMed]

2005 (1)

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Adam, M.

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

Akcali, H.

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Akcali, I.

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Akgul, M. Z.

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

Al Salhi, M. S.

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

Amaratunga, G.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Bae, W. K.

W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
[Crossref]

Baek, J.-H.

S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
[Crossref]

Bawendi, M. G.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Bentolila, L. A.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Brzozowski, L.

V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
[Crossref] [PubMed]

Chae, J.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Char, K.

W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
[Crossref]

Chauhan, V. P.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Chen, O.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Cho, K.-S.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Choi, B. L.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Cui, J.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Demir, H. V.

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

T. Erdem, S. Nizamoglu, and H. V. Demir, “Computational study of power conversion and luminous efficiency performance for semiconductor quantum dot nanophosphors on light-emitting diodes,” Opt. Express 20(3), 3275–3295 (2012).
[Crossref] [PubMed]

T. Erdem and H. V. Demir, “Semiconductor nanocrystals as rare-earth alternatives,” Nat. Photonics 5(3), 126 (2011).
[Crossref]

S. Nizamoglu, T. Erdem, X. W. Sun, and H. V. Demir, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering,” Opt. Lett. 35(20), 3372–3374 (2010).
[Crossref] [PubMed]

T. Erdem, S. Nizamoglu, X. W. Sun, and H. V. Demir, “A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores,” Opt. Express 18(1), 340–347 (2010).
[Crossref] [PubMed]

S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
[Crossref]

Doose, S.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

El Mir, L.

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

Erdem, T.

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

T. Erdem, S. Nizamoglu, and H. V. Demir, “Computational study of power conversion and luminous efficiency performance for semiconductor quantum dot nanophosphors on light-emitting diodes,” Opt. Express 20(3), 3275–3295 (2012).
[Crossref] [PubMed]

T. Erdem and H. V. Demir, “Semiconductor nanocrystals as rare-earth alternatives,” Nat. Photonics 5(3), 126 (2011).
[Crossref]

S. Nizamoglu, T. Erdem, X. W. Sun, and H. V. Demir, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering,” Opt. Lett. 35(20), 3372–3374 (2010).
[Crossref] [PubMed]

T. Erdem, S. Nizamoglu, X. W. Sun, and H. V. Demir, “A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores,” Opt. Express 18(1), 340–347 (2010).
[Crossref] [PubMed]

Eychmüller, A.

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Fukumura, D.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Gambhir, S. S.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Gaponik, N.

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Hamdan, A.

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

Han, H.-S.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Harris, D. K.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

He, G.

Hernandez-Martinez, P. L.

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

Hinds, S.

V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
[Crossref] [PubMed]

Hur, H.

W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
[Crossref]

Ibnaouf, K. H.

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

Jain, R. K.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Jang, E.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Jang, H.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Ji, Y.

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

Jun, S.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Kaiser, M.

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

Kamat, P. V.

P. V. Kamat, “Quantum dot solar cells. Semiconductor nanocrystals as light harvesters,” J. Phys. Chem. C 112(48), 18737–18753 (2008).
[Crossref]

Kelestemur, Y.

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

Kim, B.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Kim, D. H.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Kim, J. M.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Kim, J. W.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Kim, J. Y.

J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
[Crossref] [PubMed]

Kim, K.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Kim, T.-H.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Kim, Y.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Koeppe, R.

R. Koeppe and N. S. Sariciftci, “Photoinduced charge and energy transfer involving fullerene derivatives,” Photochem. Photobiol. Sci. 5(12), 1122–1131 (2006).
[Crossref] [PubMed]

Kuk, Y.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Kwon, J.-Y.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Lee, E. K.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Lee, I.-H.

S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
[Crossref]

Lee, S.

W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
[Crossref]

Lee, S. J.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Lee, S. Y.

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Lesnyak, V.

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Li, J. J.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Lim, J.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Michalet, X.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Müller, M.

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Mundra, P.

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Nizamoglu, S.

Otto, T.

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Pinaud, F. F.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Prasad, S.

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

Resch-Genger, U.

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

Sargent, E. H.

J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
[Crossref] [PubMed]

V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
[Crossref] [PubMed]

Sari, E.

S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
[Crossref]

Sariciftci, N. S.

R. Koeppe and N. S. Sariciftci, “Photoinduced charge and energy transfer involving fullerene derivatives,” Photochem. Photobiol. Sci. 5(12), 1122–1131 (2006).
[Crossref] [PubMed]

Sharma, V. K.

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Soran-Erdem, Z.

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

Stachowski, G.

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

Sukhovatkin, V.

V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
[Crossref] [PubMed]

Sun, X. W.

Sundaresan, G.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Tsay, J. M.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Voznyy, O.

J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
[Crossref] [PubMed]

Wei, H.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Weiss, S.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Wong, C.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Wu, A. M.

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

Zaman, M. B.

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

Zhang, M.

Zhao, J.

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Zhitomirsky, D.

J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
[Crossref] [PubMed]

Zhong, P.

Adv. Mater. (2)

J. Y. Kim, O. Voznyy, D. Zhitomirsky, and E. H. Sargent, “25th anniversary article: Colloidal quantum dot materials and devices: A quarter-century of advances,” Adv. Mater. 25(36), 4986–5010 (2013).
[Crossref] [PubMed]

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. 22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Chem. Mater. (2)

M. Müller, M. Kaiser, G. Stachowski, U. Resch-Genger, N. Gaponik, and A. Eychmüller, “Photoluminescence quantum yield and matrix-induced luminescence enhancement of colloidal quantum dots embedded in ionic crystals,” Chem. Mater. 26(10), 3231–3237 (2014).
[Crossref]

W. K. Bae, K. Char, H. Hur, and S. Lee, “Single-step synthesis of quantum dots with chemical composition gradients,” Chem. Mater. 20(2), 531–539 (2008).
[Crossref]

J. Lumin. (1)

K. H. Ibnaouf, S. Prasad, M. S. Al Salhi, A. Hamdan, M. B. Zaman, and L. El Mir, “Influence of the solvent environments on the spectral features of CdSe quantum dots with and without ZnS shell,” J. Lumin. 149, 369–373 (2014).
[Crossref]

J. Phys. Chem. C (1)

P. V. Kamat, “Quantum dot solar cells. Semiconductor nanocrystals as light harvesters,” J. Phys. Chem. C 112(48), 18737–18753 (2008).
[Crossref]

J. Phys. Chem. Lett. (1)

Z. Soran-Erdem, T. Erdem, P. L. Hernandez-Martinez, M. Z. Akgul, N. Gaponik, and H. V. Demir, “Macrocrystals of colloidal quantum dots in anthracene: exciton transfer and polarized emission,” J. Phys. Chem. Lett. 6(9), 1767–1772 (2015).
[Crossref] [PubMed]

Nano Lett. (1)

T. Otto, M. Müller, P. Mundra, V. Lesnyak, H. V. Demir, N. Gaponik, and A. Eychmüller, “Colloidal nanocrystals embedded in macrocrystals: Robustness, photostability, and color purity,” Nano Lett. 12(10), 5348–5354 (2012).
[Crossref] [PubMed]

Nano Res. (1)

T. Erdem, Z. Soran-Erdem, P. L. Hernandez-Martinez, V. K. Sharma, H. Akcali, I. Akcali, N. Gaponik, A. Eychmüller, and H. V. Demir, “Sweet plasmonics: sucrose macrocrystals of metal nanoparticles,” Nano Res. 8(3), 860–869 (2015).
[Crossref]

Nanophotonics (2)

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

T. Erdem, Y. Kelestemur, Z. Soran-Erdem, Y. Ji, and H. V. Demir, “Energy-saving quality road lighting with colloidal quantum dot nanophosphors,” Nanophotonics 3(6), 373–381 (2014).
[Crossref]

Nanoscale (1)

T. Erdem, Z. Soran-Erdem, V. K. Sharma, Y. Kelestemur, M. Adam, N. Gaponik, and H. V. Demir, “Stable and efficient colour enrichment powders of nonpolar nanocrystals in LiCl,” Nanoscale 7(42), 17611–17616 (2015).
[Crossref] [PubMed]

Nat. Mater. (1)

O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. K. Harris, H. Wei, H.-S. Han, D. Fukumura, R. K. Jain, and M. G. Bawendi, “Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking,” Nat. Mater. 12(5), 445–451 (2013).
[Crossref] [PubMed]

Nat. Photonics (2)

T. Erdem and H. V. Demir, “Semiconductor nanocrystals as rare-earth alternatives,” Nat. Photonics 5(3), 126 (2011).
[Crossref]

T.-H. Kim, K.-S. Cho, E. K. Lee, S. J. Lee, J. Chae, J. W. Kim, D. H. Kim, J.-Y. Kwon, G. Amaratunga, S. Y. Lee, B. L. Choi, Y. Kuk, J. M. Kim, and K. Kim, “Full-colour quantum dot displays fabricated by transfer printing,” Nat. Photonics 5(3), 176–182 (2011).
[Crossref]

Opt. Express (3)

Opt. Lett. (1)

Photochem. Photobiol. Sci. (1)

R. Koeppe and N. S. Sariciftci, “Photoinduced charge and energy transfer involving fullerene derivatives,” Photochem. Photobiol. Sci. 5(12), 1122–1131 (2006).
[Crossref] [PubMed]

Phys. Status Solidi Rapid Res. Lett. (1)

S. Nizamoglu, E. Sari, J.-H. Baek, I.-H. Lee, and H. V. Demir, “Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells,” Phys. Status Solidi Rapid Res. Lett. 4(7), 178–180 (2010).
[Crossref]

Science (2)

X. Michalet, F. F. Pinaud, L. A. Bentolila, J. M. Tsay, S. Doose, J. J. Li, G. Sundaresan, A. M. Wu, S. S. Gambhir, and S. Weiss, “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science 307(5709), 538–544 (2005).
[Crossref] [PubMed]

V. Sukhovatkin, S. Hinds, L. Brzozowski, and E. H. Sargent, “Colloidal quantum-dot photodetectors exploiting multiexciton generation,” Science 324(5934), 1542–1544 (2009).
[Crossref] [PubMed]

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Figures (5)

Fig. 1
Fig. 1

Photoluminescence spectra of the green-emitting donor and red-emitting acceptor nanocrystals (shown with green and red continuous lines, respectively) and their absorption spectra (shown with green and red dashed lines, respectively). In the inset, we provide the transmission electron microscopy images of these nanocrystals.

Fig. 2
Fig. 2

Photoluminescence spectra of the films prepared using green-red nanocrystal hybrids embedded into LiCl powders. Here, the green nanocrystals serve as exciton donors while the red nanocrystals accept excitons. In (a), (c), and (e) the spectra of the only green nanocrystal embedded powders are given together with the hybrid and only red-emitting acceptor nanocrystal embedded powders prepared using 50, 150, and 250 μL of nanocrystals, respectively. Frames (b), (d), and (f) show the variation of the spectra for the cases where 50 μL of green (donor) nanocrystals are embedded into LiCl together with 50, 150, and 250 μL of acceptor, respectively. The inset images are the real color photographs of these films under ambient (left) and UV lighting (right).

Fig. 3
Fig. 3

Time-resolved fluorescence decays of green-emitting exciton-donating nanocrystals within powders prepared using (a) 25 μL donor nanocrystals (red line) and hybrid of 25 μL donor nanocrystals together with 250 μL red-emitting exciton-accepting nanocrystals (green line), (b) 50 μL donor nanocrystals (red line) and hybrid of 50 μL donor nanocrystals together with 250 μL acceptor nanocrystals (green line), (c) 75 μL donor nanocrystals (red line) and hybrid of 75 μL donor nanocrystals together with 250 μL acceptor nanocrystals (green line), and (d) 100 μL donor nanocrystals (red line) and hybrid of 100 μL donor nanocrystals together with 250 μL acceptor nanocrystals (green line) at the donor emission peaks. Frames (e) and (f) show the TRF decays of the acceptor nanocrystals alone and in hybrid nanocrystal powders. The black dashed lines are the fitted multiexponential functions on the TRF decays.

Fig. 4
Fig. 4

Amplitude averaged lifetimes of only donor nanocrystal embedded LiCl powders, only acceptor nanocrystal embedded LiCl powders, and powders prepared using donor and acceptor nanocrystals. Frame (a) presents the lifetimes for the incorporated acceptor amount of 50 μL while in (b) and (c) the illustrated lifetimes stand for the powders prepared using 150 and 250 μL of acceptor, respectively. Frame (d) presents the NRET efficiency of the hybrid nanocrystal powders for varying acceptor incorporation amounts.

Fig. 5
Fig. 5

Emission spectrum of the NRET enhanced nanocrystal embedded LiCl powders at varying currents together with the chromaticity points of the emitted light (inset, left) and luminous efficiency of the device (LE) (inset, right).

Tables (1)

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Table 1 The volumes for green- (donor) and red-emitting (acceptor) nanocrystals used for incorporation into LiCl.

Equations (1)

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η=1 1/ τ D 1/ τ DA .

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