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Multi-functional colored coating of BaMgAl10O17:Eu phosphors with cobalt-doped Al2O3 thin films

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Abstract

BaMgAl10O17:Eu2+ (BAM) phosphor was encapsulated with a cobalt-doped Al2O3 colored layer by the sol-gel process. The coating layer was controlled to result in a thin continuous film several nanometers thick. Introduction of cobalt added coloration to the layer. This coating provided multi-effects such as enhanced durability, improved emission color, and reduced reflectance. These changes will result in improved longevity, wider color gamut and higher ambient contrast ratio of display devices. The coating layer acts not only as a damage protection layer but also as a color filter.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Seoul National University, Seoul, 151-742, Korea

    Yongseon Kim & Shinhoo Kang

  2. SAMSUNG SDI CO., LTD, Yongin-si, Gyeonggi-do, 446-577, Korea

    Yongseon Kim

Authors
  1. Yongseon Kim
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  2. Shinhoo Kang
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Correspondence to Yongseon Kim.

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Kim, Y., Kang, S. Multi-functional colored coating of BaMgAl10O17:Eu phosphors with cobalt-doped Al2O3 thin films. Appl. Phys. A 98, 245 (2010). https://doi.org/10.1007/s00339-009-5409-6

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  • DOI: https://doi.org/10.1007/s00339-009-5409-6

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