Abstract
Effects of the crystallization treatment on visible photoluminescence properties of the Eu2+–Mn2+ co-doped chalcohalide glass have been studied. A broad yellow emission at 560nm from Mn2+ ions is significantly enhanced by a factor of more than 25 via the controlled crystallization. X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman scattering spectroscopy studies demonstrate the precipitation of Ga2S3 nano-crystals (80–100nm) after the proper heat treatment. The effects of annealing conditions on the crystal size and photoluminescence behaviors are investigated.
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