CO Gas Sensing Properties of Chemically Deposited ZnO: Al Thin Films

被引：0
|
作者：
Singh, Th Ratanjit [1 ]
Singh, L. Raghumani [2 ]
Singh, Nabachandra [2 ]
机构：
[1] D M Univ, Dept Phys, Imphal 795001, Manipur, India
[2] D M Univ, DM Coll Sci, Dept Phys, Imphal 795001, Manipur, India
来源：
INDIAN JOURNAL OF PURE & APPLIED PHYSICS | 2024年 / 62卷 / 01期
关键词：
Chemical Bath Deposition; EDAX; Optical band gap; SEM; UV -Visible spectroscopy; XRD; Zinc Oxide; GRAIN-SIZE; OPTICAL-PROPERTIES; SENSITIVITY; NANORODS;
D O I：
10.56042/ijpap.v62i1.5445
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this research work, the structural and optical properties of undoped and Al doped ZnO thin films are being reported. The nanocrystalline ZnO thin films were deposited on glass substrate by chemical bath deposition technique using zinc acetate (AR), triethanolamine (AR), sodium hydroxide (AR) as the source materials and aluminum nitrate as source of the dopant. The structural characterization was done by XRD (X-ray diffraction). The crystallite size was found to decrease on doping of Al. SEM (Scanning Electron Microscope) was employed to examine the surface morphology of thin films and formation of ZnO nanorod was observed. The optical band gap of thin films was studied by UV-Visible spectroscopy. The band gap energy was found to vary from 3.84 eV to 4.0 eV. The electrical and CO gas sensing properties of thin films were also investigated. For application purpose, the quick response of chemically synthesized ZnO thin films to CO gas was observed and the fast recovery in absence of CO gas was also observed.
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收藏
页码：23 / 28
页数：6
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