Preparation and Upconversion Luminescence Characterization of Tm3+:Yb3+:Er3+:C12A7 Polycrystal

被引：2

作者：

Sun, Jinchao ^{[1
]}

Wang, Rui ^{[1
]}

Wu, Linfei ^{[1
]}

Qiu, Zhaozhong ^{[1
]}

Xing, Lili ^{[1
]}

Qu, Yunfei ^{[2
]}

Ai, Xiujun ^{[2
]}

机构：

[1] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

[2] Harbin Inst Sci & Technol, Dept Molding Mat, Harbin 150001, Peoples R China

来源：

SCIENCE OF ADVANCED MATERIALS | 2012年 / 4卷 / 5-6期

关键词：

Phosphor; Upconversion; Polycrystal; Luminescence; F-Centers; NANOCRYSTALS; IONS;

D O I：

10.1166/sam.2012.1336

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polycrystal with the general formula Tm3+:Yb3+:Er3+: Ca12Al14O33 (C12A7) was prepared by a solid-state reaction method sintered at 1300 degrees C for three hours. The upconversion (UC) fluorescence texted shows that room temperature bright white upconversion luminescence in Tm3+:Yb3+:Er3+: doped C12A7 polycrystal was obtained under single-wavelength diode laser excitation of 980 nm. The white UC luminescence consists of green, red and blue UC radiation corresponding to the transmissions H-2(11/2) -> I-4(15/2) of Er3+ ion, I-4(15/2) -> I-4(11/2) of Er3+ ion and (1)G(11/2) -> H-3(6) of Tm3+ ion. The branch ratio of three colors can be changed by altering the contents of Tm3+: Yb3+ and Er3+ ions in Tm3+: Yb3+: Er3+: C12A7 polycrystal. The blue radiation corresponds both radiation of the Tm3+ ion and F-centers in the host material.

引用

页码：669 / 672

页数：4

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