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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Mn doping effect on the structural properties of ZnO-nanostructured films deposited by the ultrasonic spray pyrolysis method
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Mn doping effect on the structural properties of ZnO-nanostructured films deposited by the ultrasonic spray pyrolysis method

机译：Mn掺杂对超声喷雾热解法沉积ZnO纳米结构膜结构性能的影响

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摘要

Mn-doped ZnO thin films with different percentages of Mn content (0, 1, 3 and 5at%) and substrate temperature of 350°C, were deposited by a simple ultrasonic spray pyrolysis method under atmospheric pressure. The chemical compositions and surface morphologies were examined by dispersive x-ray spectroscopy and scanning electron microscopy micrographs. We have studied the structural and optical properties by using x-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy and ultra-violet visible near-infrared spectroscopy. The lattice parameters calculated for the Mn-doped ZnO from XRD pattern were found to be slightly larger than those of the undoped ZnO, which indicate substitution of Mn in the ZnO lattice. Compared with the Raman spectra for ZnO pure films, the Mn-doping effect on the spectra is revealed by the presence of an additional peak about 524cm ~(-1) due to Mn incorporation. With increasing Mn doping the optical band gap increases indicating the Burstein-Moss effect.
机译：通过简单的超声喷雾热解法在大气压下沉积Mn含量不同百分比（0、1、3和5at％）且衬底温度为350℃的Mn掺杂ZnO薄膜。化学成分和表面形态通过色散X射线光谱和扫描电子显微镜显微照片检查。我们已经通过使用X射线衍射（XRD），拉曼光谱，傅立叶变换红外光谱和紫外可见近红外光谱研究了结构和光学性质。发现从XRD图计算出的掺杂Mn的ZnO的晶格参数比未掺杂的ZnO的晶格参数略大，这表明ZnO晶格中Mn的取代。与ZnO纯薄膜的拉曼光谱相比，由于掺入Mn而在524cm〜（-1）处存在一个附加峰，从而揭示了Mn掺杂对光谱的影响。随着Mn掺杂的增加，光学带隙增加，表明了布尔斯坦-莫斯效应。

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