Low-temperature photoluminescence from boron ion implanted Si

Abstract
Low-temperature photoluminescence has been used to investigate the lattice damage created by boron ion implantation in Si. Silicon wafers were implanted with 120 keV B+ ions to fluences of 1013 and 1014 ions/cm2 at room temperature. Annealing effects and the flux dependence of the luminescence spectra are reported. In agreement with previous results for electron irradiation, luminescence peaks attributed to the divacancy and the Si-G15 (K) center are observed. In addition, zcro-phonon peaks which are not found in electron-irradiated Si are reported. These new peaks may be due to cluster defects containing boron.