Abstract
For many applications, such as IR detectors and high speed devices, we need high quality cadmium telluride (CdTe) films. To fabricate CdTe epitaxial films we are using a home-built closed hot wall epitaxy system. In this paper, we shall report the complex nature of the CdTe film's microstructure as grown on InSb substrates. Films were grown under various preparation conditions. We observe profound effects of substrate temperature and source temperature on the microstructure of CdTe films. This study together with other properties will allow us to correlate various effects and to design an optimum preparation condition for epitaxial CdTe thin films. An epitaxial CdTe film on different substrates is a solution to the presentshortage of large area CdTe substrates.
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