Intensive up-conversion photoluminescence of Er^(3+)-doped Bi_(7)Ti_(4)NbO_(21)ferroelectric ceramics and its temperature sensing

查看全文 作　　者：Hua [1,2]Zou;Jun [1]Li;Qiufeng [1]Cao;Xusheng [1]Wang;Xinwei [1]Hui;Yanxia [1]Li;Yao [1]Yu;Xi [1]Yao

机构地区：[1]Functional Materials Research Laboratory School of Materials Science and Engineering Tongji University,Shanghai 201804,P.R.China;[2]School of Mathematics and Physics Jiangsu University of Technology Changzhou 213001,P.R.China

出　　处：《Journal of Advanced Dielectrics》索引2014年第4卷第4期,共5页

摘　　要：The intensive up-conversion(UC)photoluminescence and temperature sensing behavior of Er3t-doped Bi_(7)Ti_(4)NbO_(21)(BTN)ferroelectric ceramics prepared by a conventional solid-state reaction technique have been investigated.The X-ray diffraction and field emission scanning electron microscope analyses demonstrated that the Er3t-doped BTN ceramics are single phase and uniform flake-like structure.With the Er3t ions doping,the intensive UC emission was observed without obviously changing the properties of ferroelectric.The optimal emission intensity was obtained when Er doping level was 15 mol.%.The temperature sensing behavior was studied by fluorescence intensity ratio(FIR)technique of two green UC emission bands,and the experimental data fitted very well with the function of temperature in a range of 133–573 K.It suggested that the Er3t-doped BTN ferroelectric ceramics are very good candidates for applications such as optical thermometry,electro-optical devices and bio-imaging ceramics. 关键词：Ferroelectric temperature sensor Bi_(7)Ti_(4)NbO_(21) photoluminescence.

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Intensive up-conversion photoluminescence of Er^(3+)-doped Bi_(7)Ti_(4)NbO_(21)ferroelectric ceramics and its temperature sensing

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