Fabrication and long persistent luminescence of Ce3+-Cr3+co-doped yttrium aluminum gallium garnet transparent ceramics  

作　　者：Qiang Liu Wenli Wang Zhengfa Dai Vitali Boiko Haohong Chen Xin Liu Danyang Zhu Jian Xu Dariusz Hreniak Jiang Li 

机构地区：[1]School of Material Science and Engineering Jjiangsu University,Zhenjiang 212013,China [2]Key Laboratory of Transparent Opto-functional Inorganic Materials,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China [3]Institute of Low Temperature and Structure Research,Polish Academy of Sciences,Okolna 2,50-422,Wroclaw,Poland [4]International Center for Young Scientists(ICYS),National Institute for Materials Science(NIMS),Tsukuba,305-004 Japan [5]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Bejing 100049,China

出　　处：《Journal of Rare Earths》2022年第11期1699-1705,I0002,共8页稀土学报（英文版）

基　　金：Project supported by the National Key R&D Program of China(2021YFE0104800);Joint Funds of the National Natural Science Foundation of China(U1932160);National Center for Research and Development(WPC2/1/SCAPOL/2021)。

摘　　要：Pe rsistent luminescence(Pers L)materials are widely used in safety indication,traffic and transportation signs,architectural decoration and other fields.In this paper,(Y_(1-x)Ce_(x))(Al_(0.9995)Cr_(0.0005))_(2)Ga_(3)O_(12)(x=0.001,0.002,0.003,0.005)transparent ceramics were successfully prepared by solid-state reaction method in air followed by HIP post-treatment.With the increase of Cedoping concentration,the optical quality of the as-prepared ceramics is improved and the morphology is denser.Luminescent quenching occurs when the Ceconcentration is more than 0.2%.The as-prepared transparent ceramics we re annealed in different atmosphere s.From the PersL decay curve s,the transparent ce ramics after air annealing show the best PersL performance:luminance with 4424.0 mcd/m^(2)and PersL duration over865 min after ceasing 365 nm excitation,respectively.The effects of Cedoping concentration and annealing atmospheres are also discussed in detail.

关 键 词：Transparent ceramics Yttrium aluminum gallium garnet Persistent luminescence Rare earths 

分 类 号：TQ174.758.23[化学工程—陶瓷工业]