Patent ID: 9610612
Date: 2017-04-04
CPC Classifications: B05D,B82Y,C01B,C01P

Claim:
1. A method for synthesis of nanoparticles of metal selenide, metal selenide alloys, metal chalcogenides comprising at least selenium or metal chalcogenide alloys comprising at least selenium, the method comprising: obtaining a heterogeneous dispersion of powder of at least selenium in a first solvent at a first temperature, the first temperature being such that the heterogeneous dispersion comprises at least a fraction of undissolved powder in the solvent; providing a metal cation precursor and introducing the heterogeneous dispersion into a second solvent, the second solvent being at a second temperature higher than said first temperature allowing, upon introduction of the heterogeneous dispersion, dissolution of at least the fraction of the powder resulting in nucleation of the nanoparticles.