Infrared to visible upconversion luminescence in Er3+/Yb3+ doped titanate glass prepared by containerless processing

被引：30

作者：

Pan, Xiuhong ^{[1
]}

Yu, Jianding ^{[2
]}

Liu, Yan ^{[1
]}

Yoda, Shinichi ^{[2
]}

Zhang, Minghui ^{[1
]}

Ai, Fei ^{[1
]}

Jin, Fei ^{[1
]}

Yu, Huimei ^{[1
]}

Jin, Weiqing ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Japan Aerosp Explorat Agcy, ISS Sci Project Off, Tsukuba, Ibaraki 3058500, Japan

来源：

JOURNAL OF LUMINESCENCE | 2012年 / 132卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Upconversion luminescence; Titanate glass; Containerless processing; OXYFLUORIDE GLASS; ENERGY-TRANSFER; ER3+;

D O I：

10.1016/j.jlumin.2011.12.026

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Er3+ doped TiO2-La2O3 glasses modified by ZrO2 have been successfully fabricated by the containerless method with incorporated Yb3+ ions as sensitizers. Under the excitation of 980 and 808 nm diode lasers, visible emissions centered at 534, 554 and 674 nm are observed, which are assigned to the Er3+ transitions of H-2(11/2) -> I-4(15/2) -> S-4(3/2) -> I-4(5/2) and E-4(9/2) -> I-4(15/2), respectively. The emission signals are so strong that they can be observed by naked eyes even at pumping power as low as 20 mW. Measurements of pump-power dependent intensity and time-resolved decay behavior of upconversion luminescence show that two-photon excited state absorption (ESA) and energy transfer (ET) between rare earth ions are the predominant mechanisms for upconversion emissions. Besides, the intensity of upconversion luminescence has been enhanced by increasing the concentration of ZrO2 in these rare earth doped bulk titanate glasses. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1025 / 1029

页数：5

共 22 条

[1] Upconversion processes in Er3+-doped KPb2Cl5 -: art. no. 205203 [J].