Size control of metastable ZnS particles in W/O microemulsion

The effect of various factors on the metastable size of ZnS particles was i nvestigated in order to widely and precisely control the size of ultrafine particles synthesized in a microemulsion. The metastable size of the ZnS pa rticles could be more widely changed by changing the microemulsion system, the specific permittivity of the organic solvent, the pH, and the synthesis temperature than the previously reported factors. We proposed a stabilizat ion model of the ZnS ultrafine particles by surfactants and a new method fo r controlling the size of ultrafine particles synthesized in the microemuls ion.