Sp. Guo et al., EFFECT OF THE POST-AS-IMPLANTATION THERMAL-TREATMENT ON MBE HGCDTE OPTICAL-PROPERTIES(), Journal of electronic materials, 25(4), 1996, pp. 761-764
HgCdTe epilayers were grown by molecular beam epitaxy. A series of As-implanted CdTe and HgCdTe epilayers annealed under different temperat
ures were investigated by photoluminescence spectroscopy. More As+ ion
s can occupy the Te sublattice after the samples were annealed at 450
degrees C, and the acceptor level of As+ on the Te sublattice for HgCd
Te material (x approximate to 0.39) is 31.5 meV. The Raman spectrum st
udy indicates a recovery of the crystalline perfection after the post-
As+-implantation thermal treatment.