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Synthesis and luminescence properties of red phosphor CaO: Eu3+

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Abstract

Ca(NO3)2·4H2O, Eu(NO3)3 and H2C2O4·2H2O were adopted to synthesize CaO: Eu3+ with the chemical co-precipitation method, and the effects of the calcination temperature and Eu3+ doping concentration on the phosphor structure and its luminescent properties were investigated by TG-SDTA, XRD, and PL-PLE. The results confirm that the Eu3+ ions as luminescent centers substitutes Ca2+ sites without changing the crystal structure of cubic CaO. The optimum calcination temperature and the optimum concentration of Eu3+ are 1 100 ° and 1 mol%, respectively, under which the best crystallinity and highest PL intensity appeared. The maximum emission wavelength is 592 nm (5D0→7F1) which is excited by xenon lamp with the wavelength of 200–280 nm, indicating that the Eu3+ ion mainly locates in the symmetric position (Oh) in the crystal lattice of CaO.

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Authors and Affiliations

  1. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China

    Ming Kang  (康明), Jun Liu, Dingming Yang & Rong Sun

  2. College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China

    Ming Kang  (康明) & Guangfu Yin

Authors
  1. Ming Kang  (康明)
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  2. Guangfu Yin
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  3. Jun Liu
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  4. Dingming Yang
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  5. Rong Sun
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Corresponding author

Correspondence to Ming Kang  (康明).

Additional information

Funded by the Science and Technology Bureau of Sichun Province(No. 2006J13-059) and Education Bureau of Sichun Province (No. 2006A094)

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Kang, M., Yin, G., Liu, J. et al. Synthesis and luminescence properties of red phosphor CaO: Eu3+ . J. Wuhan Univ. Technol.-Mat. Sci. Edit. 24, 20–24 (2009). https://doi.org/10.1007/s11595-009-1020-0

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  • DOI: https://doi.org/10.1007/s11595-009-1020-0

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