Semiconductor clusters have one extraordinarily important property
that on doping and on changes in size, their properties change
appreciably and in a controllable way. Current research into
semiconductor clusters is focused on the properties of thin films
having nanometre range grain size. The wide range of optical and
electrical properties of II-VI group compounds make them an
important class of materials and competing candidates for silicon
and other semiconductor materials in photovoltaic and
optoelectronic applications. In this monograph, the structural,
spectroscopic and optoelectronic properties of Cadmium Sulfide,
Cadmium Telluride and Zinc Oxide thin films are studied in detail.
The effects of substrate and grain size on structural and optical
properties of these materials are also discussed. Moreover, the
synthesis of CdS nanoparticles and fabrication of ZnO thin films by
the sol-gel methods and their spectroscopic characterization are
described. The ab-initio DFT calculations are carried for the
computations of the DOS and band structures of the CdS hexagonal
wurtzite, CdTe zinc blende and ZnO hexagonal wurtzite. Effect of Cd
dopping in ZnO is also studied theoretically.
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