Bright orange upconversion in a ZnO-TiO2 composite containing Er3+ and Yb3+

被引：30

作者：

Luitel, Hom Nath ^{[1
]}

Ikeue, Kazuya ^{[1
]}

Okuda, Risa ^{[1
]}

Chand, Rumi ^{[1
]}

Torikai, Toshio ^{[1
]}

Yada, Mitsunori ^{[1
]}

Watari, Takanori ^{[1
]}

机构：

[1] Saga Univ, Dept Adv Technol Fus, Saga 8408502, Japan

来源：

OPTICAL MATERIALS | 2014年 / 36卷 / 03期

关键词：

Upconversion; Orange luminescence; ZnO-TiO2; composite; Er+-Yb3+; LUMINESCENCE; NANOPARTICLES; ABSORPTION;

D O I：

10.1016/j.optmat.2013.10.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO-TiO2 composite system containing EP and Yb3+ were prepared by solid state reaction method and its upconversion (UC) luminescence excited by 980 nm laser was studied for the first time. The effects of firing temperature, ZnO/TiO2 composition and Er3+, Yb3+ concentrations on the UC emission behavior were examined. The ZnO-TiTiO2 composite product sintered at 1200 degrees C contained Zn2TiO4, TiO2 and RE2Ti2O7 (RE = Er3+ and Yb3+) phases and exhibited strong green and red emissions arising due to the 2E111129 4S312 4115/2 and 4E912 -* 4115/2 transitions for Er3+ ion, respectively. Bright orange color by the mixing of green and red colors was observed in the 1Zn0-1TiO2 product doped with 2 at.% Er3+ and 6 at.% Yb3+. The ZnO-TiO2:Er3+, Yb3+ phosphor was compared to the brightest available phosphor, Y2O3:Er3+, Yb3+ and found to be 3-fold brighter than it. It suggests that Zn0-TiO2:Er3+, Yb3+ is a potential material for the orange upconversion phosphor. (C) 2013 Elsevier BM. All rights reserved.

引用

页码：591 / 595

页数：5

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