UV-curable silicate phosphor planar films printed on glass substrate for white light-emitting diodes

Jin Woo Jang, Jun Sik Kim, Oh Hyeon Kwon, Tae Hyeon Lee, Yong Soo Cho

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We suggest a simple way of forming a nonconventional remote phosphor layer for white light-emitting diodes. A printing technology using a paste consisting of yellow (Ba;Sr;Ca)2SiO4:Eu2+ silicate phosphor and ultraviolet (UV)-curable polymer is applied to form solid planar films on a common soda lime silicate glass substrate through UV radiation. Relative content of the phosphor was adjusted for the best dispersion of the phosphor particles in the polymer matrix with better emission and luminescence performance. As a result, the 70 wt. % phosphor-embedded film has a luminous efficacy of ∼70.1 lm/W at 200 mA.

Original languageEnglish
Pages (from-to)3723-3726
Number of pages4
JournalOptics Letters
Volume40
Issue number16
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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