The localised modes due to P defects in cadmium telluride

Dutt and Spitzer experimentally observed the localised vibrational modes related to the phosphorus defects in CdTe andr eported that P would go either to substitutional or interstitial site. In this paper we have theoretically investigated the P defect behaviour in CdTe for those two possible sites by Green’s function technique and we believe from our calculations that P goes interstitially rather than substitutionally.