Room temperature optical response of zinc oxide nanowires synthesized by chemical bath deposition to toluene vapors

被引：2
|
作者：
Apostoluk, Aleksandra [1 ,2 ]
Parize, Romain [3 ]
Vilquin, Bertrand [1 ,2 ]
Trung-Hieu Nguyen [1 ,2 ]
Consonni, Vincent [3 ]
Appert, Estelle [3 ]
Gaillard, Francois [4 ]
Masenelli, Bruno [1 ,2 ]
机构：
[1] Univ Lyon, F-69000 Lyon, France
[2] INSA Lyon, INL, CNRS, UMR 5270, 7 Ave Jean Capelle, F-69621 Villeurbanne, France
[3] Grenoble INP Minatec, LMGP, CNRS, UMR 5628, 3 Parvis Louis Neel,CS 50257, F-38016 Grenoble, France
[4] Univ Lyon 1, IRCELYON, CNRS, UMR 5256, 2 Av Albert Einstein, F-69626 Villeurbanne, France
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2016年 / 213卷 / 05期
关键词：
chemical bath deposition; gas sensors; nanowires; photoluminescence; ZnO; ZNO; PHOTOLUMINESCENCE; BENZENE; SENSOR;
D O I：
10.1002/pssa.201532748
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Zinc oxide (ZnO) nanowires were synthesized by a simple and cost-effective process, namely chemical bath deposition. X-ray diffraction (XRD) pattern clearly shows that the nanowires are well crystallized in the wurtzite hexagonal structure. Field-emission scanning electron microscope (FESEM) images show the formation of perfectly aligned and organized nanowires, with no defects visible on their surface. The diameter and length of nanowires is 65 and 850 nm, respectively. The room temperature UV-excited photoluminescence spectra show the excitonic band in the UV and a wide emission band centered in the visible. This excitonic and visible emission is studied in the presence of toluene vapors and the results demonstrate the change of the visible photoluminescence of ZnO nanowire array and that the material is able to adsorb toluene. Finally, the mechanism of toluene sensing is discussed. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1115 / 1119
页数：5
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