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Ce:YAG remote phosphor coating for white LED with silica sol binder

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2021, 31(5), pp.212-217
  • DOI : 10.6111/JKCGCT.2021.31.5.212
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : August 25, 2021
  • Accepted : September 29, 2021
  • Published : October 31, 2021

Su Jin Gim 1,  Ha Na Park 2,  Jae Ho Choi 3,  Yoon Sung Jung 3,  Hyeong-Jun Kim 4

1단국대학교 죽전캠퍼스 고분자공학과
2단국대학교 죽전캠퍼스 화학공학과
3한양대학교 신소재공학과
4한국세라믹기술원

Accredited

ABSTRACT

The applicability of the white LED from the blue LED of the coating film as a binder for surface and curved coatings were confirmed. The particle size of YAG is D50: 9~10µm, and the crystal structure is garnet (Y3Al5O12), cubic. The coating film had no cracks, at the same time, the silica sol was uniformly coated with YAG phosphor, and the YAG content and thickness in the coating film showed a tendency to increase up to 40µm in proportion to the increase in the amount added. Furthermore, as the YAG content increased, the PL emission intensity increased and the color coordinate shift toward the end of the chromatic locus curve was confirmed.

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This paper was written with support from the National Research Foundation of Korea.
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