【摘 要】
:
在组成为15Li2O-15Nb2O5-70TeO2-0.1Er2O3-0.4Yb2O3(%, 摩尔分数)的碲酸盐玻璃基础上, 采用两步热处理法制备了透明的含纳米晶颗粒碲酸盐玻璃陶瓷. 通过X射线衍射(XRD)测试表
【机 构】
:
中国科学院上海光学精密机械研究所,宁波大学信息科学与工程学院,中国科学院上海光学精密机械研究所
【基金项目】
:
国家自然科学基金,上海市青年科技启明星计划
论文部分内容阅读
在组成为15Li2O-15Nb2O5-70TeO2-0.1Er2O3-0.4Yb2O3(%, 摩尔分数)的碲酸盐玻璃基础上, 采用两步热处理法制备了透明的含纳米晶颗粒碲酸盐玻璃陶瓷. 通过X射线衍射(XRD)测试表明, 玻璃陶瓷中的晶体颗粒组成为Yb6Te5O19.2或Er6Te5O19.2, 晶粒尺寸约为55 nm. 根据Judd-Ofelt理论计算了Er3+离子在基质玻璃和玻璃陶瓷中的光谱参数Ωt(t=2, 4, 6)以及Er3+:4I15/2→4I13/2跃迁自发辐射几率, 根据McCumber理论
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