Deep states associated with platinum in silicon: A photoluminescence study

In this paper we present a photoluminescence study of Si:Pt. Two centers were detected. Piezo- spectroscopy and Zeeman experiments of one center were carried out. The experiment is well interpreted in terms of a ${\Gamma }_3$+${\Gamma }_4$+${\Gamma }_5$→${\Gamma }_1$ transition in $T_d$ symmetry. The transition is related to the donor center of Pt in silicon at $E_v$+0.32 eV.