Abstract
Mercury cadmium telluride (MCT) infrared detectors are the typical ones among those with high sensitivity near BLIP characteristics in the wavelength region of 8-12μm atmospheric window. These semiconductor materials have been the most important compound semiconductors since the first synthesis about 40 years before and are still studied by many researchers in this time. In this review, overview of MCT is summarized in view of practical application on the base of historic background. At first, the features of the MCT materials are briefly commented, and crystal growth techniques and state of the art of device technology are described. Finally future trend for this field is briefly commented.
