Photoluminescence properties of β-Ga2O3:Tb3+ nanofibers prepared by electrospinning

被引：22

作者：

Zhao, Jianguo ^{[1
]}

Zhang, Weiying ^{[1
]}

Xie, Erqing ^{[2
]}

Liu, Zhongli ^{[1
]}

Feng, Jianwu ^{[1
]}

Liu, Zhaojun ^{[1
]}

机构：

[1] Luoyang Normal Coll, Coll Phys & Elect Informat, Luoyang 471022, Peoples R China

[2] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2011年 / 176卷 / 12期

关键词：

beta-Ga2O3:Tb3+; Electrospinning; Energy transfer; Photoluminescence; Nanofibers; NANOWIRES; NANORIBBONS; EMISSION; GREEN;

D O I：

10.1016/j.mseb.2011.05.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One-dimensional Tb3+-doped beta-Ga2O3 nanofibers were prepared by a simple and cost-effective electrospinning process. Field emission scanning electron microscopy (FE-SEM). X-ray diffraction (XRD), Raman technique, and photoluminescence (PL) were used to characterize the electrospun nanofibers. FE-SEM results indicated that the diameters all of the nanofibers ranged from 100 to 300 nm, and the lengths of nanofibers reached up to several millimeters. The XRD and Raman results showed that the Ga2O3 phase belongs to the monoclinic phase. Under ultraviolet excitation, the beta-Ga2O3:Tb3+ samples showed green emission with the strongest peak at 550 nm, corresponding to D-5(4) -> F-7(5) transition of Tb3+ ions. The luminescence intensity had been further studied as a function of the doping concentration of Tb3+ in the beta-Ga2O3 samples. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：932 / 936

页数：5

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