【作者】 刘史敏； 赵高凌； 李杨； 应浩； 汪建勋； 韩高荣；

【Author】 LIU Shi-min, ZHAO Gao-ling, LI Yang, YING Hao, WANG Jian-xun, HAN Gao-rong (State Key Lab of Silicon Material, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China)

【机构】 浙江大学材料科学与工程系硅材料国家重点实验室；

【摘要】 采用高温熔融及热处理工艺,制备了透明度良好的Er3+离子掺杂的氟氧化物玻璃陶瓷,并研究了不同Er3+离子掺杂浓度下,玻璃陶瓷微晶结构、紫外．可见波段吸收光谱、近红外发射光谱的变化。结果表明:随着Er3+浓度的增加, 玻璃陶瓷中的微晶相β-PbF2晶格常数减小;紫外-可见波段吸收光谱中超灵敏跃迁4I15／2→G11／2和4I15／2→2G11／2的强度增强;同时1．53μm处近红外发射峰的半高宽增大。此外,还进行了上转换发射光谱的测试,结果表明经过热处理后,玻璃陶瓷的上转换峰要大大强于原先未经热处理的玻璃样品。更多还原

【Abstract】 In this paper, transparent Er2+ ions doped oxyfluoride glass-ceramics was prepared by high temperature melting and thermal treatment technology. The changes of micro-crystals structure, UV-VIS absorption spectra and NIR emitting spectra occurred with the variety of Er3+ concentrations were studied. The results showed that with the increase of Er3 + ions concentration, the lattice parameter of β-PbF2 would reduce, while the intensity of hyperseasitive transition 4I15/2→4G11/2 and 4I15/2→-2G11/2 would increase as well as the FWHM of 1.53 μm NIR emitting peak. Moreover, the upconversion emitting spectra was measured, and it was suggested that undergone the thermal treatment, the intensity of upconversion emitting of glass-ceramics was much stronger than that of glass.更多还原