The University of Chicago

Nexdot

Centre National De La Recherche Scientifique

Sorbonne Université

Fonds De L'espci-georges Charpak

Emmanuel Lhuillier

Philippe Guyot-Sionnest

Sean E Keuleyan

Nicolas Goubet

Benoît Dubertret

A method of preparation of mercury chalcogenide nanoparticles that includes the steps of providing a precursor of mercury and mixing the precursor of mercury with a precursor of chalcogenide, wherein the precursor of mercury is a mercury thiolate. Also, mercury telluride nanoparticles and their use in an IR photodetector, an IR photoconversion device, an IR filter or an IR photodiode.

Method of preparation of nanoparticles using mercury thiolate compounds

Disclosed is a plurality of metal chalcogenide nanocrystals coated with multiple organic and inorganic ligands; wherein the metal is selected from Hg, Pb, Sn, Cd, Bi, Sb or a mixture thereof; and the chalcogen is selected from S, Se, Te or a mixture thereof; wherein the multiple inorganic ligands includes at least one inorganic ligands are selected from S, HS, Se, Te, OH, BF, PF, Cl, Br, I, AsSe, SbS, SbTe, SbSe, AsSor a mixture thereof; and wherein the absorption of the C&#x2014;H bonds of the organic ligands relative to the absorption of metal chalcogenide nanocrystals is lower than 50%, preferably lower than 20%.

Mid and far-infrared nanocrystals based photodetectors with enhanced performances

Nanoparticles, methods of manufacture, devices comprising the nanoparticles, methods of their manufacture, and methods of their use are provided herein. The nanoparticles and devices having photoabsorptions in the range of 1.7 &#x3bc;m to 12 &#x3bc;m and can be used as photoconductors, photodiodes, phototransistors, charge-coupled devices (CCD), luminescent probes, lasers, thermal imagers, night-vision systems, and/or photodetectors.

Mid-infrared photodetectors

Growing community of inventors

Paris, France

Emmanuel Lhuillier