Thermal annealing impact on the properties of CdxHg1-xTe epitaxial layers with anodic oxidation

Abstract

From the point of view of its fundamental properties, solid solution Hg1-xCdxTe (0 less than or equal to x less than or equal to l) (MCT) is one of very attractive materials of infrared optoelectronics and has received considerable attention over the past forty odd years. In the early 90s, bulk growth of MCT was phased out for the routine production of first generation photo-conductive devices. But it is hard process to growth MCT single crystals with homogeneous composition. This fact determined a vital importance change in the MCT technology during the last decade which first at all induced by the mostly replacement of bulk growth by epitaxial technologies (LPE, MBE, VPE etc.).