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

页码：179 / 188

页数：10

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