Er-doped Ge–S–Ga glasses: Photoluminescence and thermal properties Original Research Article

Chalcogenide Er-doped (GeS2)75(Ga2S3)25 glasses have been characterized by some photoluminescence (PL) and thermal parameters with a view to possible optoelectronic applications. The emission spectra at ∼1540 nm under excitation with 1064 nm light of heavily doped samples (1.05, 1.22 and 1.39 at% Er) have been studied. The temperatures of glass transition and crystallization, as well as the kinetics of crystallization for the un-doped and most doped samples, have been determined by differential thermal analysis (DTA).