SOME THEORETICAL AND TECHNOLOGICAL ASPECTS OF UNCOOLED HGCDTE DETECTORS - A REVIEW

This work analyses a relatively new type of Hg1-xCdxTe detector which is used for the detection of CO2 laser radiation (10.6 mu m) and which operates at room temperature. In the first part of the work basic parameters of this detector type are given (spectral responsivity, detectivity, time constant) as well as their dependence on starting material parameters (absorption coefficient, carrier concentration, lifetime). The second part describes the production technology of epitaxial Hg1-xCdxTe layers using the method of isothermal vapour phase epitaxy, as well as the methods of making the detector. Finally, in the third part of the work, experimental results are presented.