α-(Y,Gd)FS:Ce3+: A novel red-emitting fluorosulfide phosphor for solid-state lighting

Yun Chen Wu, Yi Chin Chen, De Yin Wang, Chi-Shen Lee, Ching Cherng Sun, Teng-Ming Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

A novel Ce3+-doped fluorosulfide phosphor, α-(Y,Gd)FS: Ce3+, was first investigated as a new candidate for application in phosphor-converted light emitting diodes (LEDs) and thin-film electroluminescence (TFEL) devices. The detailed crystal structure was investigated based on X-ray diffraction profiles using Rietveld refinement methods. This phosphor shows good absorption ranging from ultraviolet to visible region and broad saturated red emission, which can be tuned from 660 to 672 nm, and the photoluminescence (PL) intensity was demonstrated to be effectively enhanced by Gd3+ substitution.

Original languageEnglish
Pages (from-to)15163-15166
Number of pages4
JournalJournal of Materials Chemistry
Volume21
Issue number39
DOIs
StatePublished - 21 Oct 2011

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