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Fabrication and analysis of luminous properties of ceramic phosphor plate for high-power LED

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2015, 25(1), pp.35-38
  • DOI : 10.6111/JKCGCT.2015.25.1.035
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

지은경 1 송예림 1 이민지 1 Song YoungHyun 1 YOON, DAEHO 1

1성균관대학교

Accredited

ABSTRACT

LEDs are considered to be an alternative for enhancement of energy efficiency, applied for numerous areas suchas display, automotive headlight not only lights. Yellow phosphor is generally utilized with blue LEDs to generate WLED,Y3Al5O12 : Ce3+is typically used as the yellow phosphor. The phosphor, mixed with epoxy resin, has been used by beingspread and hardened on the blue LED chip. This paste-based packaging gives rise to problems of degradation of phosphorby heat and decrease of luminous efficiency. Although phosphor plate is used instead of the epoxy-phosphor mixture tosolve these problems, loss of luminous efficacy by total internal reflection inside the plate also should be solved. In thisstudy, we coated the side of the plate with silver as one of the solution.

Citation status

* References for papers published after 2023 are currently being built.