Effect of Er3+–Yb3+ additions on the crystallization and luminescence properties of ZnO–WO3–B2O3–SiO2 glass ceramics
作者： Qinlei Wei , Hongbo Zhang , Yingya Tian , Yanling Wei , Qiong Song
DOI: 10.1016/J.JALLCOM.2015.08.164
关键词: Scanning electron microscope 、 Mineralogy 、 Doping 、 Differential scanning calorimetry 、 Fluorescence 、 Fluorescence spectroscopy 、 Analytical chemistry 、 Ion 、 Luminescence 、 Crystallization 、 Materials science
摘要: Abstract Er 3+ doped and –Yb co-doped ZnO–WO 3 –B 2 O –SiO glass-ceramics have been prepared by melt-crystallization method their properties are examined differential scanning calorimetry (DSC), electron microscopy (SEM), X-ray diffractometry (XRD) fluorescence spectroscopy. The results reveal that ions or already entered into the crystalline field. up-conversion mechanism of glass ceramics is analyzed, effect Yb concentration on intensity investigated. With increase pump power, green emission at 530 nm increases faster than 552 nm. spectrum reaches a maximum when molar ratio to 1:7.
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