Enhanced luminescence of Er+3-doped Zinc-Lead-Phosphate Glass embedded SnO2 nanoparticles

وارد كردن نانودرات داخل توده شيشه به دليل كاربردهاي گسترده جدابيت زيادي دارد. در اين مقاله شيشه ي روي-سرب-فسفات دوپ شده با Er+3 با روش ذوب-خاموش سازي تهيه گرديد. خصوصيات نوري و ساختاري شيشه فسفات توسط پراش اشعه X ، ميكروسكوپ الكتروني روبشي، اسپكتروسكوپي مادون قرمز و آناليز XRD و فوتولومينسانس و اسپكتروسكوپي UV-Vis شناسايي شد. آناليز XRD ماهيت آمورفي و SEM توزيع اندازه ذرات را نشان داد. نتايج نشان داد كه با افزايش ميزان SnO2 شكاف انرژي ساختار كاهش مي يابد و تاثير زيادي ير طيف فوتولومينسانس دارد. واژگان كليدي: مواد آمورف، شكاف انرژي، نانوذرات، لومينسانس

Introduction of the nanoparticles in the bulk glass received a large interest due to their versatile application. Te composition of Er+3 -doped Zinc-Lead-Phosphate glass samples are prepared by melt-quenching technique. Te structural and optical properties of phosphate glass have been examined by x-ray difraction, feld emission scanning electron microscopy, photoluminescence spectroscopy and UV-Vis-NIR scanning spectrophotometer. Te x-ray difraction pattern has confrmed their amorphous nature and the feld emission scanning electron microscopy micrograph showed the distribution of nanoparticles in glass. Te study indicates that doped SnO2 nanoparticles have an infuence on the band gap energy that decreases with the increasing amount of nanoparticles. Te photoluminescence spectra showed three peaks at the green-orange region of the visible spectrum and four times enhancement for doped 0.25% SnO2 nanoparticles. Te enhancement in the luminescence intensity of the green-orange region is found to be due to the efective local feld of nanoparticles. Te optical properties motivate to use these glassed as novel luminescent optical materials.