材料期刊网

Six crystal field energy levels obtained from the photoluminescence spectra of Yb(3+)-doped CuInS(2) semiconductor crystal are calculated from the diagonalization (of energy matrix) method. The root-mean-square (r.m.s) deviation sigma is 4.5 cm(-1) and so the calculated results are in good agreement with the experimental values. The local tetragonal distortion angle theta for the Yb(3+) center in CuInS(2) (which is different from the corresponding angle theta(h) in the host crystal) is obtained from the calculation.