SOLID-SOLUTION OF CDYZN1-YS NANOSIZE PARTICLES MADE IN REVERSE MICELLES

The formation of nanosized particles of a CdyZn1-yS solid solution is described with equimolar or in the presence of an excess of sulfide io ns. The CdyZn1-yS crystallites are characterized by an absorption spec trum and excitonic peak which are red shifted by increasing the size o f the particles. The particles are well crystallized with a lattice pa rameter depending on the composition, y. The size of the CdyZn1-yS par ticle is governed by the size of the water droplets and does not depen d on the composition, y. In the presence of an excess of cations, CdS particles are preferentially formed because of a faster nucleation of CdS than ZnS.