HgTe Nanocrystals Carrier Density and Its Tuning

HgTe nanocrystals (NCs) are now an established material for colloidal optoelectronics. In the mid‐ and far‐infrared range, there is to date no viable colloidal alternative material that can emit or detect light with such a high efficiency. Advancements have been rapid, primarily concentrating on the...

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Main Authors: Mariarosa Cavallo, Dario Mastrippolito, Clément Gureghian, Erwan Bossavit, Huichen Zhang, Albin Colle, Tommaso Gemo, Alexandre Neyret, Adrien Khalili, Debora Pierucci, Emmanuel Lhuillier
Format: Article
Language:English
Published: Wiley-VCH 2025-08-01
Series:Small Structures
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Online Access:https://doi.org/10.1002/sstr.202400576
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author Mariarosa Cavallo
Dario Mastrippolito
Clément Gureghian
Erwan Bossavit
Huichen Zhang
Albin Colle
Tommaso Gemo
Alexandre Neyret
Adrien Khalili
Debora Pierucci
Emmanuel Lhuillier
author_facet Mariarosa Cavallo
Dario Mastrippolito
Clément Gureghian
Erwan Bossavit
Huichen Zhang
Albin Colle
Tommaso Gemo
Alexandre Neyret
Adrien Khalili
Debora Pierucci
Emmanuel Lhuillier
author_sort Mariarosa Cavallo
collection DOAJ
description HgTe nanocrystals (NCs) are now an established material for colloidal optoelectronics. In the mid‐ and far‐infrared range, there is to date no viable colloidal alternative material that can emit or detect light with such a high efficiency. Advancements have been rapid, primarily concentrating on the direct application of the narrow bandgap material spectrum in devices. However, certain material properties, such as carrier density, have been suboptimally addressed, despite their critical importance to device design. Therefore, this review aggregates most of the recent developments related to the determination and control of the carrier density with HgTe NCs. The manuscript is organized along three scales: the intrinsic properties that mostly relate to the inorganic core of the NCs, the nanoscale functionalization that relates to the surface modification of the NCs, and the device scale mostly driven by gating methods. The review provides a systematic discussion on strategies and technologies to control the carrier density and their use for optoelectronics. Finally, a discussion is done on the directions to be developed to push even further the efficiency of devices based on this material.
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id doaj-art-ed20b3a392cf4626aba40fd397724e92
institution Kabale University
issn 2688-4062
language English
publishDate 2025-08-01
publisher Wiley-VCH
record_format Article
series Small Structures
spelling doaj-art-ed20b3a392cf4626aba40fd397724e922025-08-20T03:44:58ZengWiley-VCHSmall Structures2688-40622025-08-0168n/an/a10.1002/sstr.202400576HgTe Nanocrystals Carrier Density and Its TuningMariarosa Cavallo0Dario Mastrippolito1Clément Gureghian2Erwan Bossavit3Huichen Zhang4Albin Colle5Tommaso Gemo6Alexandre Neyret7Adrien Khalili8Debora Pierucci9Emmanuel Lhuillier10Sorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceSorbonne Université CNRS Institut des NanoSciences de Paris 75005 Paris FranceHgTe nanocrystals (NCs) are now an established material for colloidal optoelectronics. In the mid‐ and far‐infrared range, there is to date no viable colloidal alternative material that can emit or detect light with such a high efficiency. Advancements have been rapid, primarily concentrating on the direct application of the narrow bandgap material spectrum in devices. However, certain material properties, such as carrier density, have been suboptimally addressed, despite their critical importance to device design. Therefore, this review aggregates most of the recent developments related to the determination and control of the carrier density with HgTe NCs. The manuscript is organized along three scales: the intrinsic properties that mostly relate to the inorganic core of the NCs, the nanoscale functionalization that relates to the surface modification of the NCs, and the device scale mostly driven by gating methods. The review provides a systematic discussion on strategies and technologies to control the carrier density and their use for optoelectronics. Finally, a discussion is done on the directions to be developed to push even further the efficiency of devices based on this material.https://doi.org/10.1002/sstr.202400576carrier densitydopingHgTenanocrystalspn junction
spellingShingle Mariarosa Cavallo
Dario Mastrippolito
Clément Gureghian
Erwan Bossavit
Huichen Zhang
Albin Colle
Tommaso Gemo
Alexandre Neyret
Adrien Khalili
Debora Pierucci
Emmanuel Lhuillier
HgTe Nanocrystals Carrier Density and Its Tuning
Small Structures
carrier density
doping
HgTe
nanocrystals
pn junction
title HgTe Nanocrystals Carrier Density and Its Tuning
title_full HgTe Nanocrystals Carrier Density and Its Tuning
title_fullStr HgTe Nanocrystals Carrier Density and Its Tuning
title_full_unstemmed HgTe Nanocrystals Carrier Density and Its Tuning
title_short HgTe Nanocrystals Carrier Density and Its Tuning
title_sort hgte nanocrystals carrier density and its tuning
topic carrier density
doping
HgTe
nanocrystals
pn junction
url https://doi.org/10.1002/sstr.202400576
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