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首页> 外文期刊>Journal of Semiconductors >The effect of solution concentration on the physical and electrochemical properties of vanadium oxide films deposited by spray pyrolysis
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The effect of solution concentration on the physical and electrochemical properties of vanadium oxide films deposited by spray pyrolysis

机译：溶液浓度对喷雾热解沉积氧化钒薄膜物理和电化学性能的影响

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摘要

Vanadium oxide thin films were prepared on glass substrates by using the spray pyrolysis technique. The effect of solution concentration (0.1 M, 0.2 M and 0.3 M) on the nanostructural, electrical, optical, and electrochromic properties of deposited films were investigated using X-ray diffraction, scanning electron microscopy, UV–vis spectroscopy, and cyclic volta-metrics. The X-ray diffraction shows that only the sample at 0.1 M has a single β-V2O5 phase and the others have mixed phases of vanadium oxide. The lowest sheet resistance was obtained for the samples prepared at 0.3 M solution. It was also found that the optical transparency of the samples changes from 70% to 35% and the optical band gap of the samples was in the range of 2.20 to 2.41 eV, depending on the morality of solution. The cycle voltammogram shows that the sample prepared at 0.3 M has one-step electerochoromic but the other samples have two-step electerochoromic. The results show a correlation between the cycle voltammogram and the physical properties of the films.
机译：使用喷雾热解技术在玻璃基板上制备了氧化钒薄膜。使用X射线衍射，扫描电子显微镜，紫外可见光谱和循环伏安法研究了溶液浓度（0.1 M，0.2 M和0.3 M）对沉积膜的纳米结构，电学，光学和电致变色性能的影响。指标。 X射线衍射表明，只有0.1 M的样品具有单一的β-V2O5相，其余的具有氧化钒的混合相。对于在0.3 M溶液中制备的样品，获得最低的薄层电阻。还发现，样品的光学透明度从70％变化到35％，并且样品的光学带隙在2.20至2.41eV的范围内，这取决于溶液的道德。循环伏安图显示，以0.3 M制备的样品具有一步电致色性，而其他样品则具有两步电致色性。结果显示循环伏安图和膜的物理性质之间的相关性。

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