Abstract

High-energy radiation detectors being operated at room temperature have been extensively studied on the bulk CdZnTe. Metal organic chemical vapor deposition (MOCVD) technique has been intensively investigated in the low substrate temperature of epitaxial film growth. Hydrogen radicals generated by inductively coupled RF remote plasma are introduced into the reaction region with source materials. These epitaxial growth processes are carried out at a low substrate temperature below 200°C. The results obtained suggest that the remote plasma-enhanced MOCVD method can be one of the promising methods for CdZnTe–CdSeTe epitaxial growth. These growths are proposed for fabrication of the high-energy radiation detector. Using this technique, p-type CdZnTe layer and n-type CdSeTe epitaxial layer are formed on intrinsic CdZnTe substrate to form p–i–n diode.

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