Near to Long-Wave Infrared Mercury Chalcogenide Nanocrystals from Liquid Mercury
| Autor: | Sandrine Ithurria, Nicolas Goubet, Junling Qu, Sang-Soo Chee, Yimin Zhang, Charlie Gréboval, Prachi Rastogi, Xiang Zhen Xu, Emmanuel Lhuillier, Audrey Chu, Gregory Cabailh, Mayank Goyal, Maxime Thomas |
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| Přispěvatelé: | De la Molécule aux Nanos-objets : Réactivité, Interactions et Spectroscopies (MONARIS), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Physico-chimie et dynamique des surfaces (INSP-E6), Institut des Nanosciences de Paris (INSP), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI ParisTech-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Oxydes en basses dimensions (INSP-E9), ANR: copin, ANR: Iper-nano2,Iper-nano2, ANR: frontal, ANR-11-IDEX-0004-02/10-LABX-0067,MATISSE,MATerials, InterfaceS, Surfaces, Environment(2011), ANR: graskop,graskop, European Project: 756225,blackQD, Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et d'Etude des Matériaux (UMR 8213) (LPEM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ANR-19-CE24-0022,COPIN,Détecteur plasmonique à nanoCristaux colloïdaux: une nouvelle filière pour l'OPtoélectronique INfrarouge(2019), ANR-18-CE30-0023,IPER-Nano2,Nanocristaux de perovskite inorganique pour la nanophotonique(2018), ANR-19-CE09-0017,FRONTAL,Nanocristaux Colloïdaux Dopés Infrarouges(2019), ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), ANR-19-CE09-0026,GRaSkop,Tuning Giant Rashba Spin-Orbit Coupling in Polar Single Layer Transition Metal Dichalcogenides(2019) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Long wave infrared Infrared Chalcogenide Infrared spectroscopy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences HgTe nanocrystal chemistry.chemical_compound Colloid Physical and Theoretical Chemistry infarred liquid mercury business.industry Photoconductivity [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Mercury (element) General Energy chemistry Nanocrystal Optoelectronics 0210 nano-technology business |
| Zdroj: | Journal of Physical Chemistry C Journal of Physical Chemistry C, American Chemical Society, 2020, ⟨10.1021/acs.jpcc.0c01255⟩ The Journal of Physical Chemistry C Journal of Physical Chemistry C, 2020, ⟨10.1021/acs.jpcc.0c01255⟩ |
| ISSN: | 1932-7447 1932-7455 |
| Popis: | International audience; HgTe nanocrystals are currently the most promising colloidal material for infrared detection, combining broadly tunable infrared absorption and photoconductive properties. Current synthesis leads to a limited amount of material and relies on a highly toxic water-soluble form of Hg. Here, we explore the possibility of using Hg thiolate as Hg source and demonstrate that the latter can be formed in situ from liquid Hg. The developed protocol allows large masses (7 g) and highly concentrated (100 g/L) synthesis, which is a step forward for the transfer of this material towards industry. The transport properties of the material have also been investigated and we observe a transition from p to n-type with size. We observe that the threshold of the p to n switch depends on the growth method which enables for a given size of nanocrystal the formation of p-n junction. This work has great potential to design infrared sensor with optimized charge dissociation. |
| Databáze: | OpenAIRE |
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