Effect of sintering temperature on luminescence properties of borosilicate matrix blue–green emitting color conversion glass ceramics  

作　　者：Qiao-Yu Zheng Yang Li Wen-Juan Wu Ming-Ming Shi Bo-Bo Yang Jun Zou 郑巧瑜;李杨;吴文娟;石明明;杨波波;邹军(School of Science,Shanghai Institute of Technology,Shanghai 201418,China;School of Material Science and Engineering,Shanghai Institute of Technology,Shanghai 201418,China;Institute of Beyond Lighting,Academy for Engineering and Technology,Fudan University,Shanghai 200433,China;Institute of New Materials&Industrial Technology,Wenzhou University,Wenzhou 325024,China)

机构地区：[1]School of Science,Shanghai Institute of Technology,Shanghai 201418,China [2]School of Material Science and Engineering,Shanghai Institute of Technology,Shanghai 201418,China [3]Institute of Beyond Lighting,Academy for Engineering and Technology,Fudan University,Shanghai 200433,China [4]Institute of New Materials&Industrial Technology,Wenzhou University,Wenzhou 325024,China

出　　处：《Chinese Physics B》2019年第10期550-555,共6页中国物理B（英文版）

基　　金：Project supported by the Science and Technology Planning Project of Zhejiang Province,China(Grant No.2018C01046);Enterprise-funded Latitudinal Research Projects,China(Grant Nos.J2016-141,J2017-171,J2017-293,and J2017-243)

摘　　要：The color conversion glass ceramics which were made of borosilicate matrix co-doped(SrBaSm)Si2O2N2:(Eu^3+Ce^3+) blue-green phosphors were prepared by two-step method in co-sintering. The change in luminescence properties and the drift of chromaticity coordinates(CIE) of the(SrBaSm)Si2O2N2:(Eu^3+Ce^3+) blue-green phosphors and the color conversion glass ceramics were studied in the sintering temperature range from 600℃ to 800℃. The luminous intensity and internal quantum yield(QY) of the blue-green phosphors and glass ceramics decreased with the sintering temperature increasing. When the sintering temperature increased beyond 750℃, the phosphors and the color conversion glass ceramics almost had no peak in photoluminescence(PL) and excitation(PLE) spectra. The results showed that the blue-green phosphors had poor thermal stability at higher temperature. The lattice structure of the phosphors was destroyed by the glass matrix and the Ce^3+ in the phosphors was oxidized to Ce^4+, which further caused a decrease in luminescent properties of the color conversion glass ceramics.The color conversion glass ceramics which were made of borosilicate matrix co-doped（SrBaSm）Si2O2N2:(Eu3+Ce3+) blue–green phosphors were prepared by two-step method in co-sintering. The change in luminescence properties and the drift of chromaticity coordinates（CIE） of the（SrBaSm）Si2O2N2:(Eu3+Ce3+) blue–green phosphors and the color conversion glass ceramics were studied in the sintering temperature range from 600℃ to 800℃. The luminous intensity and internal quantum yield（QY） of the blue–green phosphors and glass ceramics decreased with the sintering temperature increasing. When the sintering temperature increased beyond 750℃, the phosphors and the color conversion glass ceramics almost had no peak in photoluminescence（PL） and excitation（PLE） spectra. The results showed that the blue–green phosphors had poor thermal stability at higher temperature. The lattice structure of the phosphors was destroyed by the glass matrix and the Ce3+ in the phosphors was oxidized to Ce4+, which further caused a decrease in luminescent properties of the color conversion glass ceramics.

关 键 词：(SrBaSm)Si2O2N2:(Eu^3+Ce^3+) PHOSPHORS blue-green color conversion glass ceramic luminescent intensity thermal quenching effects sintering temperature 

分 类 号：O4[理学—物理]