Abstract A green approach to synthesize three dimensional pyramid structured ZnO and Ag decorated ZnO nanoparticles were developed by one pot hydrothermal method and they were successfully applied as photoanode for DSSC. Neem extract was utilized to control the size of Ag particles. The structural and morphological properties of synthesized samples of ZnO and Ag-ZnO nanocomposites have been investigated by XRD, FESEM, and HRTEM analysis respectively. The XPS studies were performed for scrutinizing the binding energy of ZnO and Ag-ZnO nanostructured materials. The UV–VIS absorption spectrum of Ag-ZnO nanostructure displaced absorption towards visible region than the pristine ZnO. The electrochemical properties of both ZnO and Ag-ZnO nanostructure were studied using EIS (Electrochemical impedance spectra). The photoconversion efficiency of Ag-ZnO based DSSC cell showed an efficiency of 3.51% which has higher conversion efficiency than pristine ZnO (2.62%).

中文翻译：

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Ag的表面等离子体效应包裹ZnO金字塔纳米结构光阳极用于增强染料敏化太阳能电池的应用

摘要 通过一锅水热法开发了一种合成三维金字塔结构的ZnO和Ag修饰的ZnO纳米颗粒的绿色方法，并将其成功用作DSSC的光电阳极。印楝提取物用于控制银颗粒的大小。分别通过 XRD、FESEM 和 HRTEM 分析研究了合成的 ZnO 和 Ag-ZnO 纳米复合材料样品的结构和形态特性。XPS 研究用于仔细检查 ZnO 和 Ag-ZnO 纳米结构材料的结合能。与原始 ZnO 相比，Ag-ZnO 纳米结构的 UV-VIS 吸收光谱将吸收移向可见光区域。使用 EIS（电化学阻抗谱）研究了 ZnO 和 Ag-ZnO 纳米结构的电化学性质。