Effect of Yb3+ and Tm3+ concentrations on blue and NIR upconversion luminescence in Yb3+, Tm3+ co-doped CaMoO4

被引：43

作者：

Chung, Jun Ho ^{[1
]}

Ryu, Jeong Ho ^{[2
]}

Lee, Sang Yeop ^{[1
]}

Kang, Suk Hyun ^{[1
]}

Shim, Kwang Bo ^{[1
]}

机构：

[1] Hanyang Univ, Dept Mat Sci & Engn, Seoul 133791, South Korea

[2] Korea Natl Univ Transportat, Dept Mat Sci & Engn, Chungju Si 380702, Chungbuk, South Korea

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 02期

关键词：

Tm3+/Yb3+ co-doped CaMoO4; Upconversion (UC) luminescence; Upconversion mechanism; ER3+; PHOTOLUMINESCENCE; GLASS;

D O I：

10.1016/j.ceramint.2012.08.045

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polycrystalline Tm3+/Yb3+ co-doped CaMoO4 UC phosphors were successfully synthesized by a complex citrate-gel method and their upconversion (UC) luminescence was investigated. Under excitation at 980 nm, Tm3+/Yb3+ co-doped CaMoO4 showed bright blue emission near 475 nm generated by the (1)G(4)-->H-3(6) transition and strong NIR UC emission around 796 nm generated by the H-3(4)-->H-3(6) transition, with weak red emission near 650 nm due to the F-3(2)-->H-3(6) transition. The optimum doping concentrations of Tm3+ and Yb3+ for the highest UC luminescence were investigated, and the related UC mechanism of Tm3+/Yb3+ co-doped CaMoO4 depending on pump power was studied in detail. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1951 / 1956

页数：6

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