Research activities in MBE HgCdTe at SITP

Some results on MBE HgCdTe for the applications of IRFPAs are described. The p-type doing with As/sub 4/ was studied in terms of sticking coefficient, thermal activation as well as As diffusion. Various kinds of surface defects and their relations to growth condition were classified. Results on twin-free CdTe (211) composite substrates on Si and FPA applications are presented.