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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Nickel content effect on the microstructural, optical and electrical properties of p-type Mn3O4 sprayed thin films
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Nickel content effect on the microstructural, optical and electrical properties of p-type Mn3O4 sprayed thin films

机译：镍含量对p型Mn3O4喷涂薄膜的微观结构，光学和电学性质的影响

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摘要

Nickel doped Mn3O4 thin films have been prepared by the spray pyrolysis method on glass substrates at 350 degrees C. X- ray diffraction and Raman spectroscopy studies revealed that all deposited films were polycrystalline with tetragonal husmannite Mn3O4 structure. From the reflectance and transmittance optical measurements, it is found that the direct band gap energy exhibits a red shift from 2.23 to 1.87 eV with Ni doping. On the other hand, the Hall measurements show that all films exhibit p-type conductivity and this character is reinforced when Ni content increases. Moreover, AC conductivity measurements lead to a power low (sigma(AC) = A omega(s)). The dependence of both sigma(AC) and s with temperature and frequency agrees well with the CBH model as suggested by Elliott. (C) 2014 Elsevier B.V. All rights reserved.
机译：镍掺杂的Mn3O4薄膜是在350摄氏度下通过喷雾热解法在玻璃基板上制备的。X射线衍射和拉曼光谱研究表明，所有沉积的薄膜都是具有四方锰矿型Mn3O4结构的多晶。从反射率和透射率光学测量结果可以看出，直接掺杂带隙能量在掺杂Ni的情况下呈现出从2.23 eV到1.87 eV的红移。另一方面，霍尔测量结果表明，所有膜均表现出p型导电性，并且当Ni含量增加时，该特性得到增强。此外，交流电导率测量导致功率低（sigma（AC）= AΩ）。正如Elliott所建议的那样，西格玛（AC）和s对温度和频率的依赖性与CBH模型非常吻合。 （C）2014 Elsevier B.V.保留所有权利。

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