Abstract

Nanoparticles of II-VI semiconductors have been the subject of investigations in recent years. The size dependent properties of II-VI semiconductors have stimulated an exponential development of nanochemistry and nanophysics. Quantum confinement and large surface to volume ratio have led to the study of optical, electrical and vibrational properties of these nanostructured materials. Among the most common II-VI semiconductor nanoparticles, Cadmium selenide (CdSe) and Cadmium telluride (CdTe) are the famous one which has very advantageous properties as compared to the other chalcogenides of cadmium due to their great mobility and photosensitivity. CdSe is a well-known II-VI semiconductor which exists in three crystalline forms viz. wurtzite (hexagonal), sphalerite (cubic) and rock-salt (cubic). The nanoparticles (NPs) of CdSe and CdTe provide excellent and unique properties which depend upon shape and size of nanostructures.

Description