Medium and one-infrared nanocrystal-based photodetectors with enhanced performance

摘要

The present invention relates to a plurality of metal chalcogenide nanocrystals coated with a plurality of organic and inorganic ligands, The metal is selected from Hg, Pb, Sn, Cd, Bi, Sb or mixtures thereof; The chalcogen is selected from S, Se, Te or mixtures thereof; A plurality of arms wherein the ligand is ^{S 2-, HS -, Se 2-} , Te 2-, OH -, BF 4 -, PF 6 -, Cl -, Br -, I -, As 2 Se 3, Sb 2 S 3 , Sb ₂ Te ₃ , Sb ₂ Se ₃ , As ₂ S _3, or mixtures thereof; And The absorption of the CH bonds of the organic ligands to the absorption of the metal chalcogenide nanocrystals is less than 50%, preferably less than 20% To a plurality of metal chalcogenide nanocrystals.