Multi-ratio optical thermometry and energy storage characteristics of Yb^(3+)/Er^(3+)/Tm^(3+)doped BaNb_(2)O_(6)transparent glass-ceramics  

作　　者：Junhao Xing Feng Luo Yaoyi Qin Xiaolu Chen Yingying Liang Zhixin Gao Fei Shang Huarui Xu Guohua Chen 

机构地区：[1]School of Material Science and Engineering,Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology,Guilin 541004,China

出　　处：《Journal of Materials Science & Technology》2023年第7期138-148,共11页材料科学技术（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China(No.61865003);Project of Guangxi Key Laboratory of Information Materials(No.211009-Z).

摘　　要：In order to meet the needs of new materials gradually developing towards miniaturization,integration,and light weight,multifunctional BaNb_(2)O_(6):Yb^(3+)/Er^(3+)/Tm^(3+)transparent glass-ceramics were success-fully prepared by melt quenching and controllable crystallization.Its structure,luminescence,and en-ergy transmission were studied.Using the opposite temperature dependence of the Tm^(3+)emission band and the corresponding large energy level gap,a maximum relative sensitivity of 2.3%K^(-1)based on thermal coupling levels(TCLs)is obtained in a wide temperature range(298-673 K).The multi-ratio optical thermometry based on TCLs and non-TCLs is successfully realized by using the different emission bands of double emission centers,which makes it possible for self-reference optical temperature measurement modes.In addition,the transparent glass-ceramic exhibits excellent electrical properties under 700 kV cm^(-1)electric field:high discharge energy density(W_(d)=0.99 J cm^(-3)),huge instantaneous power density(225.3 MW cm^(-3)),and ultra-fast discharge rate(T_(0.9)≤15.8 ns).The prepared glass-ceramic is expected to be a new type of lead-free multifunctional photoelectric material for temperature sensors and transparent electronic devices.

关 键 词：Glass ceramics Luminescence Optical thermometry Energy storage 

分 类 号：TG132.5[一般工业技术—材料科学与工程]