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Sol-gel synthesis and luminescence property of nanocrystalline Y2O3: Eu phosphor using metal nitrate precursors

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Abstract

We synthesized nanocrystalline Y2O3: Eu phosphor by a novel sol-gel route using simple metal nitrates and alcohols as the starting materials instead of oxide powders and nitric acid. The structural characteristics and luminescence properties of the sol-gel derived nanocrystalline Y2O3: Eu phosphor were studied by X-ray diffraction, transmission electron microscopy, and photoluminescence measurement. The crystallized crystal size increased from 7 to 55 nm as the firing temperature was increased from 500 to 1000°C. The red-emitting luminescence dominated by the5D0−7F2 transition of the Eu3+ ions. The intensity of the red luminescence increased with increasing firing temperature, and concentration quenching was observed with increasing Eu3+ concentration.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, 130-743, Seoul, Korea

    M. S. Kwon

  2. Institute of Physics and Applied Physics, Yonsei University, 134, Sinchon-dong, Seodaemun-gu, 120-749, Seoul, Korea

    H. L. Park

  3. Division of Electronics and Computer Engineering, Hanyang University, 17, Haengdang-dong, Seong dong-gu, 133-791, Seoul, Korea

    T. W. Kim

  4. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, 305-701, Daejon, Korea

    Y. Huh, W. Choi & J. Y. Lee

Authors
  1. M. S. Kwon
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  2. H. L. Park
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  3. T. W. Kim
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  4. Y. Huh
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  5. W. Choi
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  6. J. Y. Lee
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Correspondence to M. S. Kwon.

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Kwon, M.S., Park, H.L., Kim, T.W. et al. Sol-gel synthesis and luminescence property of nanocrystalline Y2O3: Eu phosphor using metal nitrate precursors. Met. Mater. Int. 12, 263–267 (2006). https://doi.org/10.1007/BF03027541

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