Tailorable multicolor up-conversion emissions in Tm3+/Ho 3+/Yb3+ Co-Doped LiLa(MoO4)2

Ting Li, Chongfeng Guo*, Puju Zhao, Lin Li, Jung Hyun Jeong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Using a modified sol-gel method, LiLa(MoO4)2: Tm 3+/Ho3+/Yb3+ phosphors with tailorable up-conversion (UC) emission colors were prepared. Under the excitation of a 980 nm laser diode, up-conversion red and green emissions in Ho3+/Yb 3+ co-doped and blue emission in Tm3+/Yb3+ co-doped LiLa(MoO4)2 were observed, respectively. The intensities of the RGB (red, green, and blue) emissions could be controlled by varying concentrations of Tm3+ or Ho3+, and the optimal composition was also determined. In Tm3+/Ho3+/Yb 3+ co-doped LiLa(MoO4)2, the UC emission colors could be tuned from blue through white to yellow by adjusting the concentrations of Tm3+ or Ho3+. The UC excitation mechanisms were also investigated based on the power dependence of UC luminescence intensity.

Original languageEnglish
Pages (from-to)1193-1197
Number of pages5
JournalJournal of the American Ceramic Society
Volume96
Issue number4
DOIs
Publication statusPublished - Apr 2013

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