Patent ID: 9748422
Date: 2017-08-29
CPC Classifications: B82Y,C01B,C01P,C09K,H01L,Y02E,Y02P

Claim:
1. A method of making a semiconductor nanocrystal comprising: preparing a first mixture including: in a single container before any heating takes place; heating the first mixture including the coordinating solvent, copper or silver salt, and indium salt in the single container and adding an E donor including a Group VI element to the first mixture, heating the container holding the coordinating solvent, copper or silver salt, and indium salt and E donor at a temperature greater than 200° C., synthesizing a population of nanocrystal cores including a first Cu—In-VIA semiconductor material, wherein the nanocrystal has a luminescence quantum yield of at least 10%, wherein the nanocrystal has a peak luminescence emission wavelength in the range of 540 nm to 975 nm; and wherein the nanocrystal is a member of a nanocrystal population having an emission FWHM of no greater than 0.35 eV.