NANOPARTICLES OF TERNARY SEMICONDUCTORS IN COLLOIDS - LOW-TEMPERATUREFORMATION AND QUANTUM-SIZE EFFECTS

Aqueous and non-aqueous colloids of a series of ternary semiconductor compounds: CuInS2, CuInSe2, CuGaS2, CuFeS2, AgInS2 were prepared. The disperse phase was identified by X-ray diffraction analysis of solid p recipitates. Optical properties of colloids and polymer films with ult rasmall particles fabricated from the colloids were studied. Features of the absorption in UV, visible and near IR region are interpreted as the quantum-size effects and the result of partial oxidation of coppe r compounds. (C) 1998 Elsevier Science B.V. All rights reserved.