Effect of Mn doping on the microstructures and sensing properties of ZnO nanofibers

被引：66

作者：

Mao, Yuzhen ^{[1
]}

Ma, Shuyi ^{[1
]}

Li, Xiangbing ^{[1
]}

Wang, Caiyun ^{[1
]}

Li, Faming ^{[1
]}

Yang, Xiaohong ^{[1
]}

Zhu, Jing ^{[1
]}

Ma, Lin ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Gansu, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2014年 / 298卷

关键词：

Nanofibers; Mn doping ZnO; Electrospinning; Acetone sensing; DOPED-ZNO; GAS SENSOR; OPTICAL-PROPERTIES; NANOPARTICLES; PERFORMANCE; SELECTIVITY; NANOWIRES; NANORODS; GROWTH; FILMS;

D O I：

10.1016/j.apsusc.2014.01.133

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：

Zinc oxide (ZnO) nanofibers doped with manganese (Mn) are synthesized by electrospinning followed by calcinations at 580 degrees C for 150 min. The structure, morphology and element-composition are investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results show that the diameters of Mn-doped ZnO nanofibers are from 60 nm to 90 nm corresponding to the amount of Mn from 0 wt% to 2.0 wt%, respectively. XPS spectrum indicates that Mn2+ ions exist in divalent state. The gas sensing properties are significantly affected by the Mn-doped ZnO nanofibers and the operation temperature. The sensors exhibit excellent sensitivity, practical selectivity and stability to acetone with a fast response and recovery time at 340 degrees C. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：109 / 115

页数：7

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