Upconversion luminescence, intrinsic optical bistability,and optical thermometry in Ho3+/Yb3+: BaMoO4 phosphors  

作　　者：Xin Liu Ruoshan Lei Feifei Huang Degang Deng Huanping Wang Shilong Zhao Shiqing Xu 刘鑫;雷若姗;黄飞飞;邓德刚;王焕平;赵士龙;徐时清(College of Materials Science and Engineering, China Jiliang University)

机构地区：[1]College of Materials Science and Engineering,China Jiliang University,Hangzhou 310018,China

出　　处：《Chinese Optics Letters》2019年第11期61-64,共4页中国光学快报（英文版）

基　　金：supported by the Natural Science Foundation of Zhejiang Province(Nos.LY18E020008 and LD18F050001);the National Natural Science Foundation of China(No.61605192)

摘　　要：Ho^3+/Yb^3+: BaMoO4 phosphors with different concentrations were fabricated by a gel combustion method.The upconversion(UC) luminescence, intrinsic optical bistability, and the corresponding mechanisms were reported for the present system. The optical thermometric properties based on red(^5F5→^5I8) and green(^5F4/^5S2→^5I8) emissions were studied. The sensing sensitivities could be tuned by manipulating the cooperative energy transfer process. The highest absolute sensitivity was 99 × 10^-4 K^-1 at 573 K, which is larger than that of many previous UC materials.Ho3+/Yb3+: BaMoO4 phosphors with different concentrations were fabricated by a gel combustion method.The upconversion（UC） luminescence, intrinsic optical bistability, and the corresponding mechanisms were reported for the present system. The optical thermometric properties based on red（5F5→5I8） and green（5F4/5S2→5I8） emissions were studied. The sensing sensitivities could be tuned by manipulating the cooperative energy transfer process. The highest absolute sensitivity was 99 × 10-4 K-1 at 573 K, which is larger than that of many previous UC materials.

关 键 词：materials. process. method. 

分 类 号：O48[理学—固体物理]