Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (6): 1050-1054.doi: 10.1007/s40242-013-3086-7

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High-temperature High-pressure Hydrothermal Synthesis of Dy3+-doped YNbO4 Single Crystal and Its Luminescence Properties

YANG Min, LI Qi-liang, WANG Ying, LIU Xiao-yang, WANG Xiao-feng   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2013-03-04 Revised:2013-04-01 Online:2013-12-01 Published:2013-04-28
  • Contact: LIU Xiao-yang, WANG Xiao-feng E-mail:liuxy@jlu.edu.cn;wangxf103@jlu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China (No.21271082).

Abstract:

Single crystal Dy3+ doped YNbO4 phosphors were prepared via a high-temperature high-pressure hydrothermal procedure. Under excitation at 270 nm, the Dy3+-doped YNbO4 phosphor shows bright white emission, which is composed of two strong bands at 492 and 576 nm corresponding to the characteristic 4F9/26H15/2 and 4F9/26H13/2 transitions of Dy3+, respectively. The dominant band was observed at 352 nm, which corresponds to the 6H15/26P7/2 transition of Dy3+. Nearly white light was achieved at λex 270, 310 and 388 nm and the CIE(International Commission on Illumination) values were (0.3135, 0.3421), (0.3088, 0.3380) and (0.3146, 0.3296), respectively.

Key words: Dy-YNbO4, Single crystal, High-temperature high-pressure, Hydrothermal, Luminescence