Optical transition properties, energy transfer mechanism and luminescent thermal stability of Sm3+-doped silicate glasses

被引：33

作者：

Wu, Zhongli ^{[1
,2
]}

Chen, Baojiu ^{[1
]}

Li, Xiangping ^{[1
]}

Zhang, Jinsu ^{[1
]}

Sun, Jiashi ^{[1
]}

Zhong, Hua ^{[1
]}

Zheng, Hui ^{[1
]}

Tong, Lili ^{[1
]}

Xia, Haiping ^{[3
]}

机构：

[1] Dalian Maritime Univ, Dept Phys, Dalian 116026, Liaoning, Peoples R China

[2] Liaoning Univ Technol, Sch Sci, Jinzhou 121001, Peoples R China

[3] Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 663卷

基金：

中国国家自然科学基金;

关键词：

Judd-Ofelt theory; Energy transfer; Crossover; I-H model; UP-CONVERSION LUMINESCENCE; LIGHT-EMITTING PHOSPHORS; PHOTOLUMINESCENCE PROPERTIES; BOROPHOSPHATE GLASSES; SM3+; EMISSION; RED; SPECTROSCOPY; LASER; EU3+;

D O I：

10.1016/j.jallcom.2015.12.140

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sm3+ doped silicate glasses were synthesized via a conventional melt-quenching and annealing technique. Optical transition properties of Sm3+ in the studied silicate glass were evaluated in the framework of Judd-Ofelt theory. The radiative transition rates, fluorescence branching ratios and intrinsic lifetime for interested transitions or level were obtained. Concentration quenching, energy transfer and thermal stability were studied by fluorescence spectra and decay curves. It was found that the main reason for concentration quenching was nonradiative energy transfer through cross-relaxation mechanism due to dipole-dipole interaction. The temperature-dependent fluorescence emission was studied in detail, and it was found that crossover mechanism based on the Arrhenius model can well explain the fluorescence temperature quenching behavior of (4)G(5/2) level. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：545 / 551

页数：7