Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (10): 1099-1102.DOI: 10.15541/jim20160223

• Orginal Article • Previous Articles     Next Articles

Fabrication and Optical Properties of Ce, Pr Co-doped LuAG Transparent Ceramics

ZHOU Ding1, 2, SHI Ying1, FAN Ling-Cong1, LIN De-Bao1, SUN Ze-Qing2, XU Jia-Yue2   

  1. (1. Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China; 2. Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China)
  • Received:2016-04-01 Revised:2016-06-22 Published:2016-10-20 Online:2016-09-23
  • About author:ZHOU Ding. E-mail: ben82powder@hotmail.com
  • Supported by:
    National Natural Science Foundation of China (61475097);Shanghai Alliance Research Program (LM201521)

Abstract:

Cerium and Praseodymium co-doped Lu3Al5O12 nanocrystalline powders were synthesized by reverse titration, using ammonium hydroxide (NH4OH) and ammonium hydrogen carbonate (NH4HCO3) mixed precipitator. The optical properties of 0.25at%Pr: LuAG ceramics doped with 0, 0.1at%, 0.2at% and 0.3at% Ce3+ ions were measured. The Ce, Pr: LuAG powders showed a weak agglomeration with a primary particle size of about 60 nm after calcining at 1200℃ for 2 h. Ce, Pr co-doped LuAG transparent ceramics were obtained after green compacts were cold isostatic pressed and sintered in flowing H2 atmosphere at 1800℃ for 6 h. The in-line transmittance of the double face polished Ce, Pr co-doped LuAG ceramic at 800 nm wavelength was 82%. The X-ray excited emission spectrum showed that the emission intensity at 550 nm wavelength was enhanced in Ce, Pr co-doped LuAG transparent ceramics by energy transfer from 5d-4f of Pr3+ ions to Ce3+ ions, and the emission intensity reached maximum value when the dopant contents were 0.2at%Ce and 0.25at%Pr.

Key words: Ce3+ ion, Pr3+ ion, LuAG tansparent ceramic, optical properties

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