金属纳米结构的表面等离子体激元提高有机太阳能电池光电转换效率的研究进展

Progress in Enhanced Organic Solar Cells Performances by Surface Plasmons of Metallic Nanostructures

介绍了应用金属纳米结构的表面等离子体激元提高有机太阳能电池效率的最新研究进展。表面等离子体激元的激发取决于纳米结构的材料、尺寸、形状、密度、和周围的电介质环境等参数。调控这些参数,可以有效利用金属纳米结构增加有机太阳能电池活性层的光吸收,同时金属纳米结构表面增强的电场可促进光激子解离为载流子。因此,应用金属纳米结构的表面等离子体激元将是进一步增加有机太阳能电池的光电转换效率的重要方案。

The up-to-date progresses of application of surface plasmons of metallic nanostruc- tures for enhancing organic solar cells performance is presented. The surface plasmons excitation in nanostructures depends on the properties of material, size, shape, density, and surrounding dielectric environment, which can be adjusted to enhance light absorption of the active layer. Furthermore, efficiency of excitions into charge carriers in organic solar cell materials can be im- proved by strong electric field near surface of metal nanostructures dissociation. Therefore, ap- plying metallic nanostructures in organic solar cell is deemed a promising way to enhance the pho- toelectric conversion efficiency further.