Abstract

The chemistry of nanocrystals enables the receipt of semiconductor nanoparticles with tunable optical properties. So far most scientific efforts have been focused on wide band gap materials to achieve a bright luminescence and a higher solar power conversion efficiency. Their properties in the infrared range of wavelengths are interesting as well. Two strategies can be used to achieve mid-infrared (mid-IR) transition, either interband transition in narrow band gap material or intraband transition in doped material. In this review, we discuss recent progress to achieve stable doped nanocrystals. We focus on mercury chalcogenide compounds since they are so far the only materials that combine mid-IR absorption with photoconductive properties in this range of energies. We discuss the origin of the doping and its tunability as well as how the doping impacts the optical, transport, and photodetection properties. Finally, we discuss Hg-free alternative materials, and present mid-IR transitions.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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2017 (14)

C. Livache, E. Izquierdo, B. Martinez, M. Dufour, D. Pierucci, S. Keuleyan, H. Cruguel, L. Becerra, J.-L. Fave, H. Aubin, A. Ouerghi, E. Lacaze, M. G. Silly, B. Dubertret, S. Ithurria, and E. Lhuillier, “Charge dynamics and optolectronic properties in HgTe colloidal quantum wells,” Nano Lett. 17(7), 4067–4074 (2017).
[Crossref] [PubMed]

J. Kim, B. Yoon, J. Kim, Y. Choi, Y. W. Kwon, S. K. Park, and K. S. Jeong, “High electron mobility of β-HgS colloidal quantum dots with doubly occupied quantum states,” RSC Advances 7(61), 38166–38170 (2017).
[Crossref]

J. Jeong, B. Yoon, Y. W. Kwon, D. Choi, and K. S. Jeong, “Singly and Doubly Occupied Higher Quantum States in Nanocrystals,” Nano Lett. 17(2), 1187–1193 (2017).
[Crossref] [PubMed]

G. Shen, M. Chen, and P. Guyot-Sionnest, “Synthesis of Nonaggregating HgTe Colloidal Quantum Dots and the Emergence of Air-Stable n-Doping,” J. Phys. Chem. Lett. 8(10), 2224–2228 (2017).
[Crossref] [PubMed]

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
[Crossref] [PubMed]

H. Liu, C. K. Brozek, S. Sun, D. B. Lingerfelt, D. R. Gamelin, and X. Li, “A Hybrid Quantum-Classical Model of Electrostatics in Multiply Charged Quantum Dots,” J. Phys. Chem. C 121(46), 26086–26095 (2017).
[Crossref]

M. Chen and P. Guyot-Sionnest, “Reversible Electrochemistry of Mercury Chalcogenide Colloidal Quantum Dot Films,” ACS Nano 11(4), 4165–4173 (2017).
[Crossref] [PubMed]

L. K. Sagar, W. Walravens, J. Maes, P. Geiregat, and Z. Hens, “HgSe/CdE (E = S, Se) Core/Shell Nanocrystals by Colloidal Atomic Layer Deposition,” J. Phys. Chem. C 121(25), 13816–13822 (2017).
[Crossref]

H. Wang, E. Lhuillier, Q. Yu, A. Zimmers, B. Dubertret, C. Ulysse, and H. Aubin, “Transport in a Single Self-Doped Nanocrystal,” ACS Nano 11(2), 1222–1229 (2017).
[Crossref] [PubMed]

X. Tang, G. F. Wu, and K. W. C. Lai, “Plasmon resonance enhanced colloidal HgSe quantum dot filterless narrowband photodetectors for mid-wave infrared,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(2), 362–369 (2017).
[Crossref]

E. Lhuillier and P. Guyot Sionnest, “Recent Progresses in Mid Infrared Nanocrystal based Optoelectronics,” IEEE J. Sel. Top. Quantum Electron. 23(5), 1–8 (2017).
[Crossref]

C. Delerue, “Minimum Line Width of Surface Plasmon Resonance in Doped ZnO Nanocrystals,” Nano Lett. 17(12), 7599–7605 (2017).
[Crossref] [PubMed]

B. Tandon, A. Yadav, D. Khurana, P. Reddy, P. K. Santra, and A. Nag, “Size-Induced Enhancement of Carrier Density, LSPR Quality Factor,and Carrier Mobility in Cr−Sn Doped In2O3 Nanocrystals,” Chem. Mater. 29(21), 9360–9368 (2017).
[Crossref]

H. Zhang, R. Zhang, K. S. Schramke, N. M. Bedford, K. Hunter, U. R. Kortshagen, and P. Nordlander, “Doped Silicon Nanocrystal Plasmonics,” ACS Photonics 4(4), 963–970 (2017).
[Crossref]

2016 (9)

T. Chen, K. V. Reich, N. J. Kramer, H. Fu, U. R. Kortshagen, and B. I. Shklovskii, “Metal-insulator transition in films of doped semiconductor nanocrystals,” Nat. Mater. 15(3), 299–303 (2016).
[Crossref] [PubMed]

E. L. Runnerstrom, A. Bergerud, A. Agrawal, R. W. Johns, C. J. Dahlman, A. Singh, S. M. Selbach, and D. J. Milliron, “Defect Engineering in Plasmonic Metal Oxide Nanocrystals,” Nano Lett. 16(5), 3390–3398 (2016).
[Crossref] [PubMed]

Z. Deng and P. Guyot-Sionnest, “Intraband Luminescence from HgSe/CdS Core/Shell Quantum Dots,” ACS Nano 10(2), 2121–2127 (2016).
[Crossref] [PubMed]

G. Shen and P. Guyot-Sionnest, “HgS and HgS/CdS Colloidal Quantum Dots with Infrared Intraband Transitions and Emergence of a Surface Plasmon,” J. Phys. Chem. C 120(21), 11744–11753 (2016).
[Crossref]

A. Robin, C. Livache, S. Ithurria, E. Lacaze, B. Dubertret, and E. Lhuillier, “Surface Control of Doping in Self-Doped Nanocrystals,” ACS Appl. Mater. Interfaces 8(40), 27122–27128 (2016).
[Crossref] [PubMed]

E. Izquierdo, A. Robin, S. Keuleyan, N. Lequeux, E. Lhuillier, and S. Ithurria, “Strongly confined HgTe 2D nanoplatelets as narrow near infrared emitter,” J. Am. Chem. Soc. 138(33), 10496–10501 (2016).
[Crossref] [PubMed]

E. Lhuillier, M. Scarafagio, P. Hease, B. Nadal, H. Aubin, X. Z. Xu, N. Lequeux, G. Patriarche, S. Ithurria, and B. Dubertret, “Infrared photo-detection based on colloidal quantum-dot films with high mobility and optical absorption up to the THz,” Nano Lett. 16(2), 1282–1286 (2016).
[Crossref] [PubMed]

M. Nasilowski, B. Mahler, E. Lhuillier, S. Ithurria, and B. Dubertret, “Two-Dimensional Colloidal nanocrystals,” Chem. Rev. 116(18), 10934–10982 (2016).
[Crossref] [PubMed]

M. A. Boles, M. Engel, and D. V. Talapin, “Self-assembly of colloidal nanocrystals: from intricate structures to functional materials,” Chem. Rev. 116(18), 11220–11289 (2016).
[Crossref] [PubMed]

2015 (3)

P. Sippel, W. Albrecht, J. C. van der Bok, R. J. A. Van Dijk-Moes, T. Hannappel, R. Eichberger, and D. Vanmaekelbergh, “Femtosecond Cooling of Hot Electrons in CdSe Quantum-Well Platelets,” Nano Lett. 15(4), 2409–2416 (2015).
[Crossref] [PubMed]

E. Lhuillier, S. Ithurria, A. Descamps-Mandine, T. Douillard, R. Castaing, X. Z. Xu, P.-L. Taberna, P. Simon, H. Aubin, and B. Dubertret, “Investigating the n and p type electrolytic charging of colloidal nanoplatelets,” J. Phys. Chem. C 119(38), 21795–21799 (2015).
[Crossref]

A. M. Schimpf, S. D. Lounis, E. L. Runnerstrom, D. J. Milliron, and D. R. Gamelin, “Redox Chemistries and Plasmon Energies of Photodoped In2O3 and Sn-Doped In2O3 (ITO) Nanocrystals,” J. Am. Chem. Soc. 137(1), 518–524 (2015).
[Crossref] [PubMed]

2014 (6)

R. Gresback, N. J. Kramer, Y. Ding, T. Chen, U. R. Kortshagen, and T. Nozaki, “Controlled Doping of Silicon Nanocrystals Investigated By Solution-Processed Field Effect Transistors,” ACS Nano 8(6), 5650–5656 (2014).
[Crossref] [PubMed]

E. Lhuillier, A. Robin, S. Ithurria, H. Aubin, and B. Dubertret, “Electrolyte-gated colloidal nanoplatelets-based phototransistor and its use for bicolor detection,” Nano Lett. 14(5), 2715–2719 (2014).
[Crossref] [PubMed]

S. Ghosh, M. Saha, and S. K. De, “Tunable surface plasmon resonance and enhanced electrical conductivity of In doped ZnO colloidal nanocrystals,” Nanoscale 6(12), 7039–7051 (2014).
[Crossref] [PubMed]

Z. Deng, K. S. Jeong, and P. Guyot-Sionnest, “Colloidal quantum dots intraband photodetectors,” ACS Nano 8(11), 11707–11714 (2014).
[Crossref] [PubMed]

S. E. Keuleyan, P. Guyot-Sionnest, C. Delerue, and G. Allan, “Mercury telluride colloidal quantum dots: Electronic structure, size-dependent spectra, and photocurrent detection up to 12 μm,” ACS Nano 8(8), 8676–8682 (2014).
[Crossref] [PubMed]

K. S. Jeong, Z. Deng, S. Keuleyan, H. Liu, and P. Guyot-Sionnest, “Air-stable n-doped colloidal HgS quantum dots,” J. Phys. Chem. Lett. 5(7), 1139–1143 (2014).
[Crossref] [PubMed]

2013 (2)

E. Della Gaspera, M. Bersani, M. Cittadini, M. Guglielmi, D. Pagani, R. Noriega, S. Mehra, A. Salleo, and A. Martucci, “Low-Temperature Processed Ga-doped ZnO Coatings from Colloidal Inks,” J. Am. Chem. Soc. 135(9), 3439–3448 (2013).
[Crossref] [PubMed]

D. J. Rowe, J. S. Jeong, K. A. Mkhoyan, and U. R. Kortshagen, “Phosphorus-Doped Silicon Nanocrystals exhibiting Mid-Infrared Localized Surface Plasmon Resonance,” Nano Lett. 13(3), 1317–1322 (2013).
[Crossref] [PubMed]

2012 (3)

A. Sahu, A. Khare, D. D. Deng, and D. J. Norris, “Quantum confinement in silver selenide semiconductor nanocrystals,” Chem. Commun. (Camb.) 48(44), 5458–5460 (2012).
[Crossref] [PubMed]

E. Lhuillier, S. Keuleyan, and P. Guyot-Sionnest, “Optical properties of HgTe colloidal quantum dots,” Nanotechnology 23(17), 175705 (2012).
[Crossref] [PubMed]

A. Sahu, M. S. Kang, A. Kompch, C. Notthoff, A. W. Wills, D. Deng, M. Winterer, C. D. Frisbie, and D. J. Norris, “Electronic impurity doping in CdSe nanocrystals,” Nano Lett. 12(5), 2587–2594 (2012).
[Crossref] [PubMed]

2011 (5)

S. Keuleyan, E. Lhuillier, and P. Guyot-Sionnest, “Synthesis of Colloidal HgTe Quantum Dots for Narrow Mid-IR Emission and Detection,” J. Am. Chem. Soc. 133(41), 16422–16424 (2011).
[Crossref] [PubMed]

S. Keuleyan, E. Lhuillier, V. Brajuskovic, and P. Guyot-Sionnest, “Mid-infrared HgTe colloidal quantum dot photodetectors,” Nat. Photonics 5(8), 489–493 (2011).
[Crossref]

O. E. Semonin, J. M. Luther, S. Choi, H. Y. Chen, J. Gao, A. J. Nozik, and M. C. Beard, “Peak external photocurrent quantum efficiency exceeding 100% via MEG in a quantum dot solar cell,” Science 334(6062), 1530–1533 (2011).
[Crossref] [PubMed]

A. Sahu, L. Qi, M. S. Kang, D. Deng, and D. J. Norris, “Facile synthesis of silver chalcogenide (Ag2E; E=Se, S, Te) semiconductor nanocrystals,” J. Am. Chem. Soc. 133(17), 6509–6512 (2011).
[Crossref] [PubMed]

R. Buonsanti, A. Llordes, S. Aloni, B. A. Helms, and D. J. Milliron, “Tunable Infrared Absorption and Visible Transparency of Colloidal Aluminum-Doped Zinc Oxide Nanocrystals,” Nano Lett. 11(11), 4706–4710 (2011).
[Crossref] [PubMed]

2009 (2)

M. Kanehara, H. Koike, T. Yoshinaga, and T. Teranishi, “Indium Tin Oxide Nanoparticles with Compositionally Tunable Surface Plasmon Resonance Frequencies in the Near-IR Region,” J. Am. Chem. Soc. 131(49), 17736–17737 (2009).
[Crossref] [PubMed]

A. Rogalski, J. Antoszewski, and L. Faraone, “Third-generation infrared photodetector arrays,” J. Appl. Phys. 105(9), 091101 (2009).
[Crossref]

2008 (2)

P. Martyniuk and A. Rogalski, “Quantum-dot infrared photodetectors:Status and outlook,” Prog. Quantum Electron. 32(3-4), 89–120 (2008).
[Crossref]

D. J. Norris, A. L. Efros, and S. C. Erwin, “Doped nanocrystals,” Science 319(5871), 1776–1779 (2008).
[Crossref] [PubMed]

2007 (1)

M. Böberl, M. V. Kovalenko, S. Gamerith, E. List, and W. Heiss, “Inkjet-printed nanocrystal photodetectors operating up to 3 μm wavelengths,” Adv. Mater. 19(21), 3574–3578 (2007).
[Crossref]

2003 (1)

M. A. Hines and G. D. Scholes, “Colloidal PbS nanocrystals with size‐tunable near‐infrared emission: observation of post‐synthesis self‐narrowing of the particle size distribution,” Adv. Mater. 15(21), 1844–1849 (2003).
[Crossref]

2002 (1)

A. L. Roest, J. J. Kelly, D. Vanmaekelbergh, and E. A. Meulenkamp, “Staircase in the Electron Mobility of a ZnO Quantum Dot Assembly due to Shell Filling,” Phys. Rev. Lett. 89(3), 036801 (2002).
[Crossref] [PubMed]

2001 (2)

M. Shim and P. Guyot-Sionnest, “Organic-Capped ZnO Nanocrystals: Synthesis and n-Type Character,” J. Am. Chem. Soc. 123(47), 11651–11654 (2001).
[Crossref] [PubMed]

C. Wang, M. Shim, and P. Guyot-Sionnest, “Electrochromic nanocrystal quantum dots,” Science 291(5512), 2390–2392 (2001).
[Crossref] [PubMed]

2000 (1)

V. I. Klimov, A. A. Mikhailovsky, D. W. McBranch, C. A. Leatherdale, and M. G. Bawendi, “Mechanisms for intraband energy relaxation in semiconductor quantum dots: The role of electron-hole interactions,” Phys. Rev. B 61(20), R13349 (2000).
[Crossref]

1999 (1)

P. Guyot-Sionnest, M. Shim, C. Matranga, and M. Hines, “Intraband relaxation in CdSe quantum dots,” Phys. Rev. B 60(4), 2181–2184 (1999).
[Crossref]

1998 (1)

J. Phillips, K. Kamath, and P. Bhattacharya, “Far-infrared photoconductivity in self-organized InAs quantum dots,” Appl. Phys. Lett. 72(16), 2020–2022 (1998).
[Crossref]

1996 (1)

M. A. Hines and P. Guyot-Sionnest, “Synthesis and characterization of strongly luminescing ZnS-capped CdSe nanocrystals,” J. Phys. Chem. 100(2), 468–471 (1996).
[Crossref]

1994 (1)

J. Faist, F. Capasso, D. L. Sivco, C. Sirtori, A. L. Hutchinson, and A. Y. Cho, “Quantum cascade laser,” Science 264(5158), 553–556 (1994).
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1993 (1)

B. F. Levine, “Quantum-well infrared photodetectors,” J. Appl. Phys. 74(8), R1–R81 (1993).
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1974 (3)

L. Esaki, “Long journey into tunneling,” Rev. Mod. Phys. 46(2), 237–244 (1974).
[Crossref]

L. L. Chang, L. Esaki, and R. Tsu, “Resonant tunneling in semiconductor double barriers,” Appl. Phys. Lett. 24(12), 593–595 (1974).
[Crossref]

L. Esaki and L. L. Chang, “New Transport Phenomenon in a Semiconductor “Superlattice,”,” Phys. Rev. Lett. 33(8), 495–498 (1974).
[Crossref]

1970 (1)

L. Esaki and R. Tsu, “Superlattice and negative differential conductivity in semiconductors,” IBM J. Res. Develop. 14(1), 61–65 (1970).
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Agrawal, A.

E. L. Runnerstrom, A. Bergerud, A. Agrawal, R. W. Johns, C. J. Dahlman, A. Singh, S. M. Selbach, and D. J. Milliron, “Defect Engineering in Plasmonic Metal Oxide Nanocrystals,” Nano Lett. 16(5), 3390–3398 (2016).
[Crossref] [PubMed]

Albrecht, W.

P. Sippel, W. Albrecht, J. C. van der Bok, R. J. A. Van Dijk-Moes, T. Hannappel, R. Eichberger, and D. Vanmaekelbergh, “Femtosecond Cooling of Hot Electrons in CdSe Quantum-Well Platelets,” Nano Lett. 15(4), 2409–2416 (2015).
[Crossref] [PubMed]

Allan, G.

S. E. Keuleyan, P. Guyot-Sionnest, C. Delerue, and G. Allan, “Mercury telluride colloidal quantum dots: Electronic structure, size-dependent spectra, and photocurrent detection up to 12 μm,” ACS Nano 8(8), 8676–8682 (2014).
[Crossref] [PubMed]

Aloni, S.

R. Buonsanti, A. Llordes, S. Aloni, B. A. Helms, and D. J. Milliron, “Tunable Infrared Absorption and Visible Transparency of Colloidal Aluminum-Doped Zinc Oxide Nanocrystals,” Nano Lett. 11(11), 4706–4710 (2011).
[Crossref] [PubMed]

Antoszewski, J.

A. Rogalski, J. Antoszewski, and L. Faraone, “Third-generation infrared photodetector arrays,” J. Appl. Phys. 105(9), 091101 (2009).
[Crossref]

Aubin, H.

C. Livache, E. Izquierdo, B. Martinez, M. Dufour, D. Pierucci, S. Keuleyan, H. Cruguel, L. Becerra, J.-L. Fave, H. Aubin, A. Ouerghi, E. Lacaze, M. G. Silly, B. Dubertret, S. Ithurria, and E. Lhuillier, “Charge dynamics and optolectronic properties in HgTe colloidal quantum wells,” Nano Lett. 17(7), 4067–4074 (2017).
[Crossref] [PubMed]

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
[Crossref] [PubMed]

H. Wang, E. Lhuillier, Q. Yu, A. Zimmers, B. Dubertret, C. Ulysse, and H. Aubin, “Transport in a Single Self-Doped Nanocrystal,” ACS Nano 11(2), 1222–1229 (2017).
[Crossref] [PubMed]

E. Lhuillier, M. Scarafagio, P. Hease, B. Nadal, H. Aubin, X. Z. Xu, N. Lequeux, G. Patriarche, S. Ithurria, and B. Dubertret, “Infrared photo-detection based on colloidal quantum-dot films with high mobility and optical absorption up to the THz,” Nano Lett. 16(2), 1282–1286 (2016).
[Crossref] [PubMed]

E. Lhuillier, S. Ithurria, A. Descamps-Mandine, T. Douillard, R. Castaing, X. Z. Xu, P.-L. Taberna, P. Simon, H. Aubin, and B. Dubertret, “Investigating the n and p type electrolytic charging of colloidal nanoplatelets,” J. Phys. Chem. C 119(38), 21795–21799 (2015).
[Crossref]

E. Lhuillier, A. Robin, S. Ithurria, H. Aubin, and B. Dubertret, “Electrolyte-gated colloidal nanoplatelets-based phototransistor and its use for bicolor detection,” Nano Lett. 14(5), 2715–2719 (2014).
[Crossref] [PubMed]

Bawendi, M. G.

V. I. Klimov, A. A. Mikhailovsky, D. W. McBranch, C. A. Leatherdale, and M. G. Bawendi, “Mechanisms for intraband energy relaxation in semiconductor quantum dots: The role of electron-hole interactions,” Phys. Rev. B 61(20), R13349 (2000).
[Crossref]

Beard, M. C.

O. E. Semonin, J. M. Luther, S. Choi, H. Y. Chen, J. Gao, A. J. Nozik, and M. C. Beard, “Peak external photocurrent quantum efficiency exceeding 100% via MEG in a quantum dot solar cell,” Science 334(6062), 1530–1533 (2011).
[Crossref] [PubMed]

Becerra, L.

C. Livache, E. Izquierdo, B. Martinez, M. Dufour, D. Pierucci, S. Keuleyan, H. Cruguel, L. Becerra, J.-L. Fave, H. Aubin, A. Ouerghi, E. Lacaze, M. G. Silly, B. Dubertret, S. Ithurria, and E. Lhuillier, “Charge dynamics and optolectronic properties in HgTe colloidal quantum wells,” Nano Lett. 17(7), 4067–4074 (2017).
[Crossref] [PubMed]

Bedford, N. M.

H. Zhang, R. Zhang, K. S. Schramke, N. M. Bedford, K. Hunter, U. R. Kortshagen, and P. Nordlander, “Doped Silicon Nanocrystal Plasmonics,” ACS Photonics 4(4), 963–970 (2017).
[Crossref]

Bergerud, A.

E. L. Runnerstrom, A. Bergerud, A. Agrawal, R. W. Johns, C. J. Dahlman, A. Singh, S. M. Selbach, and D. J. Milliron, “Defect Engineering in Plasmonic Metal Oxide Nanocrystals,” Nano Lett. 16(5), 3390–3398 (2016).
[Crossref] [PubMed]

Bersani, M.

E. Della Gaspera, M. Bersani, M. Cittadini, M. Guglielmi, D. Pagani, R. Noriega, S. Mehra, A. Salleo, and A. Martucci, “Low-Temperature Processed Ga-doped ZnO Coatings from Colloidal Inks,” J. Am. Chem. Soc. 135(9), 3439–3448 (2013).
[Crossref] [PubMed]

Bhattacharya, P.

J. Phillips, K. Kamath, and P. Bhattacharya, “Far-infrared photoconductivity in self-organized InAs quantum dots,” Appl. Phys. Lett. 72(16), 2020–2022 (1998).
[Crossref]

Böberl, M.

M. Böberl, M. V. Kovalenko, S. Gamerith, E. List, and W. Heiss, “Inkjet-printed nanocrystal photodetectors operating up to 3 μm wavelengths,” Adv. Mater. 19(21), 3574–3578 (2007).
[Crossref]

Boles, M. A.

M. A. Boles, M. Engel, and D. V. Talapin, “Self-assembly of colloidal nanocrystals: from intricate structures to functional materials,” Chem. Rev. 116(18), 11220–11289 (2016).
[Crossref] [PubMed]

Brajuskovic, V.

S. Keuleyan, E. Lhuillier, V. Brajuskovic, and P. Guyot-Sionnest, “Mid-infrared HgTe colloidal quantum dot photodetectors,” Nat. Photonics 5(8), 489–493 (2011).
[Crossref]

Brozek, C. K.

H. Liu, C. K. Brozek, S. Sun, D. B. Lingerfelt, D. R. Gamelin, and X. Li, “A Hybrid Quantum-Classical Model of Electrostatics in Multiply Charged Quantum Dots,” J. Phys. Chem. C 121(46), 26086–26095 (2017).
[Crossref]

Buonsanti, R.

R. Buonsanti, A. Llordes, S. Aloni, B. A. Helms, and D. J. Milliron, “Tunable Infrared Absorption and Visible Transparency of Colloidal Aluminum-Doped Zinc Oxide Nanocrystals,” Nano Lett. 11(11), 4706–4710 (2011).
[Crossref] [PubMed]

Capasso, F.

J. Faist, F. Capasso, D. L. Sivco, C. Sirtori, A. L. Hutchinson, and A. Y. Cho, “Quantum cascade laser,” Science 264(5158), 553–556 (1994).
[Crossref] [PubMed]

Castaing, R.

E. Lhuillier, S. Ithurria, A. Descamps-Mandine, T. Douillard, R. Castaing, X. Z. Xu, P.-L. Taberna, P. Simon, H. Aubin, and B. Dubertret, “Investigating the n and p type electrolytic charging of colloidal nanoplatelets,” J. Phys. Chem. C 119(38), 21795–21799 (2015).
[Crossref]

Chang, L. L.

L. Esaki and L. L. Chang, “New Transport Phenomenon in a Semiconductor “Superlattice,”,” Phys. Rev. Lett. 33(8), 495–498 (1974).
[Crossref]

L. L. Chang, L. Esaki, and R. Tsu, “Resonant tunneling in semiconductor double barriers,” Appl. Phys. Lett. 24(12), 593–595 (1974).
[Crossref]

Chen, H. Y.

O. E. Semonin, J. M. Luther, S. Choi, H. Y. Chen, J. Gao, A. J. Nozik, and M. C. Beard, “Peak external photocurrent quantum efficiency exceeding 100% via MEG in a quantum dot solar cell,” Science 334(6062), 1530–1533 (2011).
[Crossref] [PubMed]

Chen, M.

G. Shen, M. Chen, and P. Guyot-Sionnest, “Synthesis of Nonaggregating HgTe Colloidal Quantum Dots and the Emergence of Air-Stable n-Doping,” J. Phys. Chem. Lett. 8(10), 2224–2228 (2017).
[Crossref] [PubMed]

M. Chen and P. Guyot-Sionnest, “Reversible Electrochemistry of Mercury Chalcogenide Colloidal Quantum Dot Films,” ACS Nano 11(4), 4165–4173 (2017).
[Crossref] [PubMed]

Chen, T.

T. Chen, K. V. Reich, N. J. Kramer, H. Fu, U. R. Kortshagen, and B. I. Shklovskii, “Metal-insulator transition in films of doped semiconductor nanocrystals,” Nat. Mater. 15(3), 299–303 (2016).
[Crossref] [PubMed]

R. Gresback, N. J. Kramer, Y. Ding, T. Chen, U. R. Kortshagen, and T. Nozaki, “Controlled Doping of Silicon Nanocrystals Investigated By Solution-Processed Field Effect Transistors,” ACS Nano 8(6), 5650–5656 (2014).
[Crossref] [PubMed]

Cho, A. Y.

J. Faist, F. Capasso, D. L. Sivco, C. Sirtori, A. L. Hutchinson, and A. Y. Cho, “Quantum cascade laser,” Science 264(5158), 553–556 (1994).
[Crossref] [PubMed]

Choi, D.

J. Jeong, B. Yoon, Y. W. Kwon, D. Choi, and K. S. Jeong, “Singly and Doubly Occupied Higher Quantum States in Nanocrystals,” Nano Lett. 17(2), 1187–1193 (2017).
[Crossref] [PubMed]

Choi, S.

O. E. Semonin, J. M. Luther, S. Choi, H. Y. Chen, J. Gao, A. J. Nozik, and M. C. Beard, “Peak external photocurrent quantum efficiency exceeding 100% via MEG in a quantum dot solar cell,” Science 334(6062), 1530–1533 (2011).
[Crossref] [PubMed]

Choi, Y.

J. Kim, B. Yoon, J. Kim, Y. Choi, Y. W. Kwon, S. K. Park, and K. S. Jeong, “High electron mobility of β-HgS colloidal quantum dots with doubly occupied quantum states,” RSC Advances 7(61), 38166–38170 (2017).
[Crossref]

Cittadini, M.

E. Della Gaspera, M. Bersani, M. Cittadini, M. Guglielmi, D. Pagani, R. Noriega, S. Mehra, A. Salleo, and A. Martucci, “Low-Temperature Processed Ga-doped ZnO Coatings from Colloidal Inks,” J. Am. Chem. Soc. 135(9), 3439–3448 (2013).
[Crossref] [PubMed]

Cruguel, H.

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
[Crossref] [PubMed]

C. Livache, E. Izquierdo, B. Martinez, M. Dufour, D. Pierucci, S. Keuleyan, H. Cruguel, L. Becerra, J.-L. Fave, H. Aubin, A. Ouerghi, E. Lacaze, M. G. Silly, B. Dubertret, S. Ithurria, and E. Lhuillier, “Charge dynamics and optolectronic properties in HgTe colloidal quantum wells,” Nano Lett. 17(7), 4067–4074 (2017).
[Crossref] [PubMed]

Dahlman, C. J.

E. L. Runnerstrom, A. Bergerud, A. Agrawal, R. W. Johns, C. J. Dahlman, A. Singh, S. M. Selbach, and D. J. Milliron, “Defect Engineering in Plasmonic Metal Oxide Nanocrystals,” Nano Lett. 16(5), 3390–3398 (2016).
[Crossref] [PubMed]

Dayen, J. F.

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
[Crossref] [PubMed]

De, S. K.

S. Ghosh, M. Saha, and S. K. De, “Tunable surface plasmon resonance and enhanced electrical conductivity of In doped ZnO colloidal nanocrystals,” Nanoscale 6(12), 7039–7051 (2014).
[Crossref] [PubMed]

Delerue, C.

C. Delerue, “Minimum Line Width of Surface Plasmon Resonance in Doped ZnO Nanocrystals,” Nano Lett. 17(12), 7599–7605 (2017).
[Crossref] [PubMed]

S. E. Keuleyan, P. Guyot-Sionnest, C. Delerue, and G. Allan, “Mercury telluride colloidal quantum dots: Electronic structure, size-dependent spectra, and photocurrent detection up to 12 μm,” ACS Nano 8(8), 8676–8682 (2014).
[Crossref] [PubMed]

Della Gaspera, E.

E. Della Gaspera, M. Bersani, M. Cittadini, M. Guglielmi, D. Pagani, R. Noriega, S. Mehra, A. Salleo, and A. Martucci, “Low-Temperature Processed Ga-doped ZnO Coatings from Colloidal Inks,” J. Am. Chem. Soc. 135(9), 3439–3448 (2013).
[Crossref] [PubMed]

Deng, D.

A. Sahu, M. S. Kang, A. Kompch, C. Notthoff, A. W. Wills, D. Deng, M. Winterer, C. D. Frisbie, and D. J. Norris, “Electronic impurity doping in CdSe nanocrystals,” Nano Lett. 12(5), 2587–2594 (2012).
[Crossref] [PubMed]

A. Sahu, L. Qi, M. S. Kang, D. Deng, and D. J. Norris, “Facile synthesis of silver chalcogenide (Ag2E; E=Se, S, Te) semiconductor nanocrystals,” J. Am. Chem. Soc. 133(17), 6509–6512 (2011).
[Crossref] [PubMed]

Deng, D. D.

A. Sahu, A. Khare, D. D. Deng, and D. J. Norris, “Quantum confinement in silver selenide semiconductor nanocrystals,” Chem. Commun. (Camb.) 48(44), 5458–5460 (2012).
[Crossref] [PubMed]

Deng, Z.

Z. Deng and P. Guyot-Sionnest, “Intraband Luminescence from HgSe/CdS Core/Shell Quantum Dots,” ACS Nano 10(2), 2121–2127 (2016).
[Crossref] [PubMed]

Z. Deng, K. S. Jeong, and P. Guyot-Sionnest, “Colloidal quantum dots intraband photodetectors,” ACS Nano 8(11), 11707–11714 (2014).
[Crossref] [PubMed]

K. S. Jeong, Z. Deng, S. Keuleyan, H. Liu, and P. Guyot-Sionnest, “Air-stable n-doped colloidal HgS quantum dots,” J. Phys. Chem. Lett. 5(7), 1139–1143 (2014).
[Crossref] [PubMed]

Descamps-Mandine, A.

E. Lhuillier, S. Ithurria, A. Descamps-Mandine, T. Douillard, R. Castaing, X. Z. Xu, P.-L. Taberna, P. Simon, H. Aubin, and B. Dubertret, “Investigating the n and p type electrolytic charging of colloidal nanoplatelets,” J. Phys. Chem. C 119(38), 21795–21799 (2015).
[Crossref]

Ding, Y.

R. Gresback, N. J. Kramer, Y. Ding, T. Chen, U. R. Kortshagen, and T. Nozaki, “Controlled Doping of Silicon Nanocrystals Investigated By Solution-Processed Field Effect Transistors,” ACS Nano 8(6), 5650–5656 (2014).
[Crossref] [PubMed]

Doudin, B.

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
[Crossref] [PubMed]

Douillard, T.

E. Lhuillier, S. Ithurria, A. Descamps-Mandine, T. Douillard, R. Castaing, X. Z. Xu, P.-L. Taberna, P. Simon, H. Aubin, and B. Dubertret, “Investigating the n and p type electrolytic charging of colloidal nanoplatelets,” J. Phys. Chem. C 119(38), 21795–21799 (2015).
[Crossref]

Dubertret, B.

H. Wang, E. Lhuillier, Q. Yu, A. Zimmers, B. Dubertret, C. Ulysse, and H. Aubin, “Transport in a Single Self-Doped Nanocrystal,” ACS Nano 11(2), 1222–1229 (2017).
[Crossref] [PubMed]

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
[Crossref] [PubMed]

C. Livache, E. Izquierdo, B. Martinez, M. Dufour, D. Pierucci, S. Keuleyan, H. Cruguel, L. Becerra, J.-L. Fave, H. Aubin, A. Ouerghi, E. Lacaze, M. G. Silly, B. Dubertret, S. Ithurria, and E. Lhuillier, “Charge dynamics and optolectronic properties in HgTe colloidal quantum wells,” Nano Lett. 17(7), 4067–4074 (2017).
[Crossref] [PubMed]

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L. K. Sagar, W. Walravens, J. Maes, P. Geiregat, and Z. Hens, “HgSe/CdE (E = S, Se) Core/Shell Nanocrystals by Colloidal Atomic Layer Deposition,” J. Phys. Chem. C 121(25), 13816–13822 (2017).
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H. Wang, E. Lhuillier, Q. Yu, A. Zimmers, B. Dubertret, C. Ulysse, and H. Aubin, “Transport in a Single Self-Doped Nanocrystal,” ACS Nano 11(2), 1222–1229 (2017).
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Zhang, H.

H. Zhang, R. Zhang, K. S. Schramke, N. M. Bedford, K. Hunter, U. R. Kortshagen, and P. Nordlander, “Doped Silicon Nanocrystal Plasmonics,” ACS Photonics 4(4), 963–970 (2017).
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Zhang, R.

H. Zhang, R. Zhang, K. S. Schramke, N. M. Bedford, K. Hunter, U. R. Kortshagen, and P. Nordlander, “Doped Silicon Nanocrystal Plasmonics,” ACS Photonics 4(4), 963–970 (2017).
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H. Wang, E. Lhuillier, Q. Yu, A. Zimmers, B. Dubertret, C. Ulysse, and H. Aubin, “Transport in a Single Self-Doped Nanocrystal,” ACS Nano 11(2), 1222–1229 (2017).
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ACS Appl. Mater. Interfaces (2)

B. Martinez, C. Livache, L. D. Notemgnou Mouafo, N. Goubet, S. Keuleyan, H. Cruguel, S. Ithurria, H. Aubin, A. Ouerghi, B. Doudin, E. Lacaze, B. Dubertret, M. G. Silly, R. P. S. M. Lobo, J. F. Dayen, and E. Lhuillier, “HgSe self-doped nanocrystals as a platform to investigate the effects of vanishing confinement,” ACS Appl. Mater. Interfaces 9(41), 36173–36180 (2017).
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A. Robin, C. Livache, S. Ithurria, E. Lacaze, B. Dubertret, and E. Lhuillier, “Surface Control of Doping in Self-Doped Nanocrystals,” ACS Appl. Mater. Interfaces 8(40), 27122–27128 (2016).
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ACS Nano (6)

M. Chen and P. Guyot-Sionnest, “Reversible Electrochemistry of Mercury Chalcogenide Colloidal Quantum Dot Films,” ACS Nano 11(4), 4165–4173 (2017).
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Z. Deng and P. Guyot-Sionnest, “Intraband Luminescence from HgSe/CdS Core/Shell Quantum Dots,” ACS Nano 10(2), 2121–2127 (2016).
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H. Wang, E. Lhuillier, Q. Yu, A. Zimmers, B. Dubertret, C. Ulysse, and H. Aubin, “Transport in a Single Self-Doped Nanocrystal,” ACS Nano 11(2), 1222–1229 (2017).
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R. Gresback, N. J. Kramer, Y. Ding, T. Chen, U. R. Kortshagen, and T. Nozaki, “Controlled Doping of Silicon Nanocrystals Investigated By Solution-Processed Field Effect Transistors,” ACS Nano 8(6), 5650–5656 (2014).
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S. E. Keuleyan, P. Guyot-Sionnest, C. Delerue, and G. Allan, “Mercury telluride colloidal quantum dots: Electronic structure, size-dependent spectra, and photocurrent detection up to 12 μm,” ACS Nano 8(8), 8676–8682 (2014).
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Z. Deng, K. S. Jeong, and P. Guyot-Sionnest, “Colloidal quantum dots intraband photodetectors,” ACS Nano 8(11), 11707–11714 (2014).
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ACS Photonics (1)

H. Zhang, R. Zhang, K. S. Schramke, N. M. Bedford, K. Hunter, U. R. Kortshagen, and P. Nordlander, “Doped Silicon Nanocrystal Plasmonics,” ACS Photonics 4(4), 963–970 (2017).
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Adv. Mater. (2)

M. Böberl, M. V. Kovalenko, S. Gamerith, E. List, and W. Heiss, “Inkjet-printed nanocrystal photodetectors operating up to 3 μm wavelengths,” Adv. Mater. 19(21), 3574–3578 (2007).
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M. A. Hines and G. D. Scholes, “Colloidal PbS nanocrystals with size‐tunable near‐infrared emission: observation of post‐synthesis self‐narrowing of the particle size distribution,” Adv. Mater. 15(21), 1844–1849 (2003).
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Appl. Phys. Lett. (2)

L. L. Chang, L. Esaki, and R. Tsu, “Resonant tunneling in semiconductor double barriers,” Appl. Phys. Lett. 24(12), 593–595 (1974).
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J. Phillips, K. Kamath, and P. Bhattacharya, “Far-infrared photoconductivity in self-organized InAs quantum dots,” Appl. Phys. Lett. 72(16), 2020–2022 (1998).
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Chem. Commun. (Camb.) (1)

A. Sahu, A. Khare, D. D. Deng, and D. J. Norris, “Quantum confinement in silver selenide semiconductor nanocrystals,” Chem. Commun. (Camb.) 48(44), 5458–5460 (2012).
[Crossref] [PubMed]

Chem. Mater. (1)

B. Tandon, A. Yadav, D. Khurana, P. Reddy, P. K. Santra, and A. Nag, “Size-Induced Enhancement of Carrier Density, LSPR Quality Factor,and Carrier Mobility in Cr−Sn Doped In2O3 Nanocrystals,” Chem. Mater. 29(21), 9360–9368 (2017).
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Chem. Rev. (2)

M. Nasilowski, B. Mahler, E. Lhuillier, S. Ithurria, and B. Dubertret, “Two-Dimensional Colloidal nanocrystals,” Chem. Rev. 116(18), 10934–10982 (2016).
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M. A. Boles, M. Engel, and D. V. Talapin, “Self-assembly of colloidal nanocrystals: from intricate structures to functional materials,” Chem. Rev. 116(18), 11220–11289 (2016).
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IBM J. Res. Develop. (1)

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J. Am. Chem. Soc. (7)

M. Shim and P. Guyot-Sionnest, “Organic-Capped ZnO Nanocrystals: Synthesis and n-Type Character,” J. Am. Chem. Soc. 123(47), 11651–11654 (2001).
[Crossref] [PubMed]

M. Kanehara, H. Koike, T. Yoshinaga, and T. Teranishi, “Indium Tin Oxide Nanoparticles with Compositionally Tunable Surface Plasmon Resonance Frequencies in the Near-IR Region,” J. Am. Chem. Soc. 131(49), 17736–17737 (2009).
[Crossref] [PubMed]

A. M. Schimpf, S. D. Lounis, E. L. Runnerstrom, D. J. Milliron, and D. R. Gamelin, “Redox Chemistries and Plasmon Energies of Photodoped In2O3 and Sn-Doped In2O3 (ITO) Nanocrystals,” J. Am. Chem. Soc. 137(1), 518–524 (2015).
[Crossref] [PubMed]

A. Sahu, L. Qi, M. S. Kang, D. Deng, and D. J. Norris, “Facile synthesis of silver chalcogenide (Ag2E; E=Se, S, Te) semiconductor nanocrystals,” J. Am. Chem. Soc. 133(17), 6509–6512 (2011).
[Crossref] [PubMed]

E. Della Gaspera, M. Bersani, M. Cittadini, M. Guglielmi, D. Pagani, R. Noriega, S. Mehra, A. Salleo, and A. Martucci, “Low-Temperature Processed Ga-doped ZnO Coatings from Colloidal Inks,” J. Am. Chem. Soc. 135(9), 3439–3448 (2013).
[Crossref] [PubMed]

E. Izquierdo, A. Robin, S. Keuleyan, N. Lequeux, E. Lhuillier, and S. Ithurria, “Strongly confined HgTe 2D nanoplatelets as narrow near infrared emitter,” J. Am. Chem. Soc. 138(33), 10496–10501 (2016).
[Crossref] [PubMed]

S. Keuleyan, E. Lhuillier, and P. Guyot-Sionnest, “Synthesis of Colloidal HgTe Quantum Dots for Narrow Mid-IR Emission and Detection,” J. Am. Chem. Soc. 133(41), 16422–16424 (2011).
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J. Appl. Phys. (2)

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Figures (5)

Fig. 1
Fig. 1 (a) Band diagram of a semiconductor, showing how the band edge energy is enhanced in the presence of confinement. (b) TEM image of a HgSe nanocrystal and (c) its schematic highlighting the presence of ligands. (d) Absorption and photoluminescnce spectra of a CdSe/CdS nanocrystal solution. (e) Image of solutions of CdSe based nanocrystals with various levels of confinement.
Fig. 2
Fig. 2 (a) Band diagram of HgTe, adapted from [34]. (b) Infrared absorption spectrum of a HgSe nanocrystal film. (c) Photocurrent spectra of HgTe CQDs with absorption in the MWIR, adapted with permission from [25], Copyright (2016) American Chemical Society. (d) Photocurrent spectra of HgTe CQDs with absorption in the LWIR, adapted with permission from [27], Copyright (2016) American Chemical Society. (e) Absorption spectra of HgSe CQDs with optical features in the Far IR, adapted with permission from [33], Copyright (2016) American Chemical Society. (f) Absorption spectra of HgTe CQDs with absorption up to the THz range, adapted from [32].
Fig. 3
Fig. 3 (a) Absorption spectra of HgSe CQD films with different surface chemistries, adapted with permission from [35], Copyright (2016) American Chemical Society. (b) Change of the population of the conduction band 1S state, as the surface chemistry is tuned, adapted with permission from [35], Copyright (2016) American Chemical Society. (c) Phase diagram of the HgSe CQDs, plotting the relative position of the Fermi energy with respect to the valence band as a function of the confinement energy, for different sizes of HgSe CQDs and different surface chemistries, adapted with permission from [33], Copyright (2017) American Chemical Society.
Fig. 4
Fig. 4 (a) Transfer curve (drain current vs gate voltage) for a electrolytic field effect transistor, whose channel is made of HgSe CQDs. (b) Current as a function of temperature for thin films of HgSe CQDs with small and large sizes, adapted with permission from [35], Copyright (2016) American Chemical Society. (c) Intraband photocurrent spectrum from HgSe CQD films with different sizes, adapted with permission from [24], Copyright (2014) American Chemical Society. (d) Temporal evolution of the photosignal obtained from an HgSe CQD film under illumination by a 1.55 µm laser diode, adapted with permission from [35], Copyright (2014) American Chemical Society. (e) Map of detectivity as a function of the detector wavelength for different technologies of infrared photodetector, adapted from [48]. The round dark spot with red text are based on CQD films.
Fig. 5
Fig. 5 (a) Infrared absorption spectrum of Ag2Se CQDs. (b) Absorption spectrum of Cr-Sn Doped In2O3 CQDs, adapted with permission from [59], Copyright (2014) American Chemical Society. (c) Absorption spectrum of P doped Si nanocrystals, adapted with permission from [63], Copyright (2014) American Chemical Society.

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