Patent · US Active

Mid and far-infrared nanocrystals based photodetectors with enhanced performances

US10944065B2 · kind B2 · utility

1Cited by
4References
21Claims
0Family size

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Inventor

Key dates

Filing dateJul 28, 2016
Grant dateMar 9, 2021
Priority date—
Expiry dateApr 6, 2037

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P70/50
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

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 S2−, HS−, Se2−, Te2−, OH−, BF4−, PF6−, Cl−, Br−, I−, As2Se3, Sb2S3, Sb2Te3, Sb2Se3, As2S3 or a mixture thereof; and wherein the absorption of the C—H bonds of the organic ligands relative to the absorption of metal chalcogenide nanocrystals is lower than 50%, preferably lower than 20%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.