Upconversion luminescent materials of Y–Gd oxysulfide binary system codoped with Yb and Er

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• 作者：Pengde Han ; Xiaoping Jiang ; Sen Cheng…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：26
• 期：9
• 页码：6599-6605
• 全文大小：1,078 KB
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• 作者单位：Pengde Han (1) (4)
  Xiaoping Jiang (2)
  Sen Cheng (1)
  Wei Jin (1)
  Fangli Yu (1)
  Rongfeng Guan (3)
  Qitu Zhang (4)
  
  1. School of Materials Engineering, Yancheng Institute of Technology, Yancheng, 224051, People’s Republic of China
  4. College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
  2. Analytical and Testing Center, Yancheng Institute of Technology, Yancheng, 224051, People’s Republic of China
  3. Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1573-482X

文摘

(Y1?xGdx)2O2S:0.08Yb/0.02Er powders doped with different concentrations of Gd3+ (x?=?0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0) were prepared by flux method. The effects of Gd3+ doping amount on the phase composition, the crystal structure, the luminescent intensity, the emission color, phonon energy and forbidden bandwidth of Y2O2S:Yb/Er were investigated by XRD, UPL, CIE, RAMAN and R%, respectively. (Y1?xGdx)2O2S:Yb/Er powders doped with different concentrations of Gd3+ were all pure oxysulfide phase. Upconversion luminescent intensity of (Y0.9Gd0.1)2O2S:Yb/Er was the maximum. Green and red emission intensity of Y2O2S:Yb/Er was increased by three times with doping 10?mol% Gd3+ ions. The emission color was basically yellow. Gd3+ ions optimized the crystal structure of Y2O2S, changed the crystal field of Er3+ and Yb3+ ions, and improved the upconversion luminescent properties.