Inducing tunable host luminescence in Zn2GeO4 tetrahedral materials via doping Cr3+

被引：13
|
作者：
Bai, Qiongyu [1 ,2 ]
Li, Panlai [3 ]
Wang, Zhijun [3 ]
Xu, Shuchao [3 ]
Li, Ting [3 ]
Yang, Zhiping [3 ]
Xu, Zheng [1 ,2 ]
机构：
[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, Peoples R China
[3] Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2018年 / 199卷
基金：
中国国家自然科学基金;
关键词：
Luminescence; Phosphors; Defect; Cr3+; THERMALLY STIMULATED LUMINESCENCE; FIELD-EMISSION DISPLAYS; PERSISTENT LUMINESCENCE; PHOTOCATALYTIC ACTIVITY; PHOTOLUMINESCENCE; PHOSPHORS; NANOROD; PHOTOCHROMISM; NANOCRYSTALS; WHITE;
D O I：
10.1016/j.saa.2018.03.065
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Zn2GeO4 consisting of tetrahedron, and it is a self-luminescent material due to the presence of the native defects and shows a bluish white emission excited by ultraviolet. Although Cr3+ doped in a tetrahedron generally cannot show luminescence, in this research, new defects are formed as Cr3+ doped in Zn2GeO4, hence a green emission band can be obtained. Meanwhile, the intensity of host emission is also decreased. Therefore, Zn2GeO4:Cr3+ are synthesized using a high-temperature solid-phase method. Thermoluminescence (TL) and luminescence decay curves are used to investigate the variation of native defects. The emission colour can be tuned from bluish white to green when Cr3+ doped in Zn2GeO4. This result has guidance for controlling the native emission of self-luminescent material. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：179 / 188
页数：10
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