Structural and optical properties of Er3+-doped Y2Ti2O7 thin films by sol-gel method

被引：23
|
作者：
Ting, Chu-Chi [1 ]
Chang, Chia-Wei [1 ]
Chuang, Liang-Chih [1 ]
Li, Chang-Hung [1 ]
Chiu, Yi-Shan [1 ]
机构：
[1] Natl Chung Cheng Univ, Grad Inst Optomechatron Engn, Chiayi, Taiwan
来源：
THIN SOLID FILMS | 2010年 / 518卷 / 20期
关键词：
Erbium; Yttrium; Pyrochlore; Photoluminescence; Sol-gel deposition; X-ray diffraction; Optical properties; UP-CONVERSION; ERBIUM; ABSORPTION; DEPOSITION; CONDUCTION; GLASS; IONS; FLUORESCENCE; ENHANCEMENT; TEMPERATURE;
D O I：
10.1016/j.tsf.2010.05.052
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Er(3+)-doped Y(2)Ti(2)O(7) and Er(2)Ti(2)O(7) thin films were fabricated by sot-gel spin-coating method. A well-defined pyrochlore phase Er(x)Y(2-x)Ti(2)O(7) was observed while the annealing temperature exceeded 800 degrees C. The average transmittance of the Er(x)Y(2-x)Ti(2)O(7) thin films annealed at 400 to 900 degrees C reduces from similar to 87 to similar to 77%. The refractive indices and optical band gaps of Er(x)Y(2-x)Ti(2)O(7) (x = 0-2) annealed at 800 degrees C/1 h vary from 2.20 to 2.09 and 4.11 to 4.07 eV, respectively. The similar to 1.53 mu m photoluminescence spectrum of Er(3+) (5 mol%)-doped Y(2)Ti(2)O(7) thin films annealed at 700 degrees C/1 h exhibits the maximum intensity and full-width at half maximum (similar to 60 nm). (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：5704 / 5710
页数：7
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