精品文档---下载后可任意编辑一维纳米 SnO2TiO2 复合薄膜电极的制备及光电性能讨论的开题报告摘要本文旨在讨论一维纳米 SnO2TiO2 复合薄膜电极的制备方法及其光电性能。首先，采纳溶胶-凝胶法将 SnO2 纳米颗粒和 TiO2 纳米线混合制备成 SnO2TiO2 溶胶，接着在玻璃基板上通过旋涂法得到 SnO2TiO2复合薄膜电极。然后，通过扫描电子显微镜、X 射线衍射、拉曼光谱等分析手段讨论了制备过程中的微观结构和晶体结构，并通过紫外-可见光谱和电化学方法探究了复合薄膜电极的光电性能。通过讨论发现，制备的 SnO2TiO2 复合薄膜电极具有高的光电转换效率和稳定性，其中主要原因是 SnO2 纳米颗粒和 TiO2 纳米线的复合使得电极的界面形态更加复杂，因此有更多的活性位点和电子转移通道。此外，通过对制备条件的调控可以进一步提高复合薄膜电极的性能。关键词：一维纳米材料；SnO2TiO2 复合薄膜电极；光电性能AbstractThe objective of this study is to investigate the preparation method and photoelectronic properties of one-dimensional nanoscale SnO2TiO2 composite film electrode. First of all, the SnO2 nanoparticles and TiO2 nanowires were mixed and prepared into SnO2TiO2 sol by sol-gel method, then the SnO2TiO2 composite film electrode was obtained on glass substrate by spin-coating method. Then, the microstructure and crystal structure during the preparation process were studied by scanning electron microscopy, X-ray diffraction, and Raman spectroscopy, and the photoelectronic properties of the composite film electrode were explored by ultraviolet-visible spectroscopy and electrochemical methods.It was found that the prepared SnO2TiO2 composite film electrode exhibits high photoelectric conversion efficiency and stability, mainly due to the complex morphology of the electrode interface after the SnO2 nanoparticles and TiO2 nanowires are combined, thereby providing more active sites and electron transfer channels. In addition, the performance of the composite film electrode can be further improved by controlling the preparation conditions.精品文档---下载后可任意编辑Keywords: one-dimensional nanomaterials; SnO2TiO2 composite film electrode; photoelectronic properties.
