Formation and transformation of II-VI semiconductor nanoparticles by laser radiation

Abstract

Pulsed laser deposition has been applied for fabrication of Cd1-xMnxTe nanocrystals embedded in SiO2 matrix. By further thermal annealing an increase of average size of nanoparticles and narrowing of their size distribution was reached. Colloidal chemistry methods were used for preparing of Cd1-xMnxS nanoparticles. After UV irradiation of the colloidal solution with Cd1-xMnxS nanoparticles the average size and size distribution was changed owing size-selective photoetching mechanism. Results of optical and magneto-optical characterizations of the as-grown and the treated nanoparticle samples are described.