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

16 Citations (Scopus)


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
Issue number16
Publication statusPublished - 2015 Jan 1


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this