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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 3: 471 - 474

DOI: https://doi.org/10.3724/SP.J.1077.2008.00471

Research Paper

Synthesis and Luminescent Characteristics of Sr2CeO4:Sm3+ Phosphors for Light-emitting Diode

  • JIAO Hai-Yan ,
  • WANG Yu-Hua ,
  • ZHANG Jia-Chi
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  • Department of Materials Science, College of Physical Science and
    Technology, Lanzhou University, Lanzhou 730000, China

Received date: 2007-06-06

  Revised date: 2007-08-24

  Online published: 2008-05-20

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Abstract

The trivalent samarium doped Sr2CeO4 color-tunable phosphors were successfully synthesized by solid state reaction at 1200℃ for 6h and their luminescent characteristics were studied. The results indicate that the host can transfer its exciting energy to rare earth ion Sm3+ when excited with 365nm light. The emission color can be changed by tuning activator’s concentration in Sr2CeO4:Sm3+ phosphors. The doped compound emits strong white light when the concentration of the doped Sm3+ is lower than 3％. When the Sm3+ concentration is increased from 3％ to 15％, it emits red light. The chromaticity coordinate of Sr2CeO4: 1% Sm3+ phosphor is measured
to be (x, y) (0.334, 0.320), which is closed to the pure white (0.33, 0.33). It shows that Sr2CeO4: 1% Sm3+ phosphor is a promising single white phosphor for ultraviolet light-emitting diode.

Cite this article

JIAO Hai-Yan , WANG Yu-Hua , ZHANG Jia-Chi . Synthesis and Luminescent Characteristics of Sr2CeO4:Sm3+ Phosphors for Light-emitting Diode[J]. Journal of Inorganic Materials, 2008 , 23(3) : 471 -474 . DOI: 10.3724/SP.J.1077.2008.00471

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