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Gréboval C, Chu A, Goubet N, Livache C, Ithurria S, Lhuillier E. Mercury Chalcogenide Quantum Dots: Material Perspective for Device Integration. Chem Rev 2021; 121:3627-3700. [DOI: 10.1021/acs.chemrev.0c01120] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Charlie Gréboval
- CNRS, Institut des NanoSciences de Paris, INSP, Sorbonne Université, F-75005 Paris, France
| | - Audrey Chu
- CNRS, Institut des NanoSciences de Paris, INSP, Sorbonne Université, F-75005 Paris, France
| | - Nicolas Goubet
- CNRS, Laboratoire de la Molécule aux Nano-objets; Réactivité, Interactions et Spectroscopies, MONARIS, Sorbonne Université, 4 Place Jussieu, Case Courier 840, F-75005 Paris, France
| | - Clément Livache
- CNRS, Institut des NanoSciences de Paris, INSP, Sorbonne Université, F-75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d’Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin 75005 Paris, France
| | - Emmanuel Lhuillier
- CNRS, Institut des NanoSciences de Paris, INSP, Sorbonne Université, F-75005 Paris, France
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Wang H, Lhuillier E, Yu Q, Zimmers A, Dubertret B, Ulysse C, Aubin H. Transport in a Single Self-Doped Nanocrystal. ACS NANO 2017; 11:1222-1229. [PMID: 28045500 DOI: 10.1021/acsnano.6b07898] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Addressing the optical properties of a single nanoparticle in the infrared is particularly challenging, thus alternative methods for characterizing the conductance spectrum of nanoparticles in this spectral range need to be developed. Here we describe an efficient method of fabricating single nanoparticle tunnel junctions on a chip circuit. We apply this method to narrow band gap nanoparticles of HgSe, which band structure combines the inverted character of the bulk semimetal with quantum confinement and self-doping. Upon tuning the gate bias, measurement reveals the presence of two energy gaps in the spectrum. The wider gap results from the interband gap, while the narrower gap results from intraband transitions. The observation of the latter near zero gate voltage confirms the doped character of the nanoparticle at the single particle level, which is in full agreement with the ensemble optical and transport measurements. Finally we probe the phototransport within a single quantum dot and demonstrate a large photogain mechanism resulting from photogating.
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Affiliation(s)
- Hongyue Wang
- ESPCI-ParisTech, PSL Research University, UPMC Université Paris 06, LPEM, CNRS , 10 rue Vauquelin, Paris Cedex 5 F-75231, France
| | - Emmanuel Lhuillier
- Sorbonne Universités, UPMC Université Paris 06, CNRS-UMR 7588, Institut des NanoSciences de Paris , Paris F-75005, France
| | - Qian Yu
- ESPCI-ParisTech, PSL Research University, UPMC Université Paris 06, LPEM, CNRS , 10 rue Vauquelin, Paris Cedex 5 F-75231, France
| | - Alexandre Zimmers
- ESPCI-ParisTech, PSL Research University, UPMC Université Paris 06, LPEM, CNRS , 10 rue Vauquelin, Paris Cedex 5 F-75231, France
| | - Benoit Dubertret
- ESPCI-ParisTech, PSL Research University, UPMC Université Paris 06, LPEM, CNRS , 10 rue Vauquelin, Paris Cedex 5 F-75231, France
| | - Christian Ulysse
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N - Marcoussis, Marcoussis 91460, France
| | - Hervé Aubin
- ESPCI-ParisTech, PSL Research University, UPMC Université Paris 06, LPEM, CNRS , 10 rue Vauquelin, Paris Cedex 5 F-75231, France
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