Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) are a feasible option for photovoltaic energy. Zinc oxide is an n-type semiconductor employed as photoanode on DSSCs. ZnO thin films were electrodeposited to study the effects of different potentials applied during deposition. SEM images, XRD and UV-Vis analysis were conducted to reveal the morphologic, structural and optical properties of the films at three potentials. DSSCs were assembled and the photovoltaic parameters were obtained through J-V plots. DSSC with 0.031% of efficiency was demonstrated at -1.4 V of deposition potential.

染料敏化太阳能电池（Dye-sensitized solar cells, DSSCs）是光伏能源领域的可行技术方案。氧化锌（Zinc oxide, ZnO）是一种n型半导体，常被用作DSSCs中的光阳极。本研究通过电沉积法制备氧化锌薄膜，以探究沉积过程中施加不同电位对薄膜的影响。通过扫描电子显微镜（Scanning Electron Microscopy, SEM）、X射线衍射（X-ray Diffraction, XRD）以及紫外-可见光谱（Ultraviolet-Visible Spectroscopy, UV-Vis）对三种沉积电位下制备的薄膜的形貌、结构与光学性能进行了表征分析。随后组装制备DSSCs，并通过电流-电压（J-V）曲线获取其光伏性能参数。在沉积电位为-1.4 V时，所制备的DSSCs展现出0.031%的光电转换效率。