METHOD FOR PREPARATION OF NANOPARTICLES CHALCOGENIDE SEMICONDUCTIVE MATERIALS Russian patent published in 2009 - IPC B22F9/24 B82B3/00 

FIELD: chemistry.

SUBSTANCE: activation of chalcogen and dichalcogenide is implemented beforehand in alkali containing hydrazine-hydrate at temperature 70-80^oC at ratio alkali/chalcogen equal to 2.3-2.5:1 for sulphur and selenium 6-8:1 for tellurium and at ratio alkali/dichalcogenide equal to equal to 2.5-3.0:1. Alkali is potassium or sodium hydroxide, organic dichalcogenide is compound of general formula R₂Y₂ whereat R - C₆H₅, C₆H₅CH₂, C₂H₅, C₄H₉, HOCH₂CH₂, (HOCH₂)₂CH, CH₂=CHCH₂, C₈H₁₇. Nanoparticles are obtained by interreaction of metal salt with elemental chalcogen and in the meantime with organic dichalcogenide being the source of ligands - nanoparticles stabilisators at temperature 40-60^oC. The resultant chalcogenide semicondactive nanoparticles have the general formula Me_nY_m(YR)_2(n-m) whereat Me - Zn, Cd, Hg, Y - S, Se, Te, n=10-30, m=8-24, R is organic radical.

EFFECT: simple nanoparticles obtaining and high yield of the product.

2 cl, 1 tbl