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首页> 外文期刊>Journal of nano research >Investigation of Microstructural and Optical Properties of Ag_3O_4Thin Films Sprayed onto Glass Substrate
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Investigation of Microstructural and Optical Properties of Ag_3O_4Thin Films Sprayed onto Glass Substrate

机译：喷涂在玻璃基板上的Ag_3O_4薄膜的微观结构和光学性质的研究

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摘要

In the present work we studied the effect of temperature and molarity on microstructural and optical properties of Ag3O4 thin films deposited by spray pyrolysis. Transparent conductive thin films of silver oxide (Ag3O4) were prepared by using an aqueous solution of silver nitrate (AgNO3) and sprayed onto heated soda glass substrate at 350 degrees C and annealed at 550 degrees C. X-ray diffraction showed that the films have a monoclinic structure with a preferential orientation along the (031) direction. A visible shift of the main peak as a function of temperature and solution molarity is observed. The lattice parameters a, b and c are estimated to be 3.68, 9.30 and 5.20 angstrom respectively. Scanning Electronic Microscopy (SEM) analysis shows that all films are nanostructured and homogeneous with dense surfaces. Transmittance and reflectance measurements are performed in the spectral range 200-1600 nm and yielded a band gap energy (E-g) varying in the range 3.07-3.25eV. Refractive index was studied in terms of Moss, Ravindra and Herve-Vandamme models. The optical constants such as the oscillator energy (E-0), static refractive index (n(0)), dispersion energy (E-d) and dielectric parameters (epsilon(r)) of the films were derived from the analysis and discussed.
机译：在本工作中，我们研究了温度和摩尔浓度对通过喷雾热解沉积的Ag3O4薄膜的微观结构和光学性质的影响。通过使用硝酸银水溶液（AgNO3）制备氧化银（Ag3O4）的透明导电薄膜，并在350摄氏度下喷涂到加热的钠玻璃基板上，并在550摄氏度下退火。X射线衍射表明该薄膜具有具有沿（031）方向优先取向的单斜晶结构。观察到主峰随温度和溶液摩尔浓度的变化。晶格参数a，b和c分别估计为3.68、9.30和5.20埃。扫描电子显微镜（SEM）分析显示，所有膜均为纳米结构且具有致密表面的均质膜。在200-1600 nm光谱范围内执行透射率和反射率测量，并产生在3.07-3.25eV范围内变化的带隙能量（E-g）。根据Moss，Ravindra和Herve-Vandamme模型研究了折射率。通过分析和讨论，得出了薄膜的光学常数，如振荡器能量（E-0），静态折射率（n（0）），色散能量（E-d）和介电参数（epsilon（r））。

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