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Structure and optical properties of nanocrystalline BiFeO_3 films prepared by chemical solution deposition

机译:化学溶液沉积法制备纳米晶BiFeO_3薄膜的结构和光学性质

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摘要

Bismuth ferric oxide (BiFeO_3) films grown on quartz substrate were prepared by a simple chemical solution deposition. Phase constitution characterization of the films were obtained by X-ray diffraction, surface morphology and transmittance of the films were studied by atomic force microscopy and ultraviolet-visible-infrared light spectrophotometer. The optical constants (refractive index n, extinction coefficient k) were calculated by straightforward method proposed by Swanepoel [Swanepoel R, J. Phys., E J. Sci. Instrum. 1983; 16: 1214-1222. [1]]. The influence of the processing parameters on microstructure and optical properties, especially band gap, were studied.
机译:通过简单的化学溶液沉积制备在石英衬底上生长的三氧化二铋(BiFeO_3)薄膜。通过X射线衍射获得薄膜的相组成特征,通过原子力显微镜和紫外-可见-红外分光光度计研究薄膜的表面形态和透射率。光学常数(折射率n,消光系数k)通过Swanepoel提出的简单方法[Swanepoel R,J.Phys。,E J.Sci.Natl.Acad.Sci。仪器1983年; 16:1214-1222。 [1]。研究了加工参数对显微组织和光学性能,尤其是带隙的影响。

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