State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU) , Xi'an 710072, China.
Department of Mechanical Engineering, University of Delaware , Newark, DE19716, United States.
ACS Appl Mater Interfaces. 2017 Sep 20;9(37):31691-31698. doi: 10.1021/acsami.7b04624. Epub 2017 Sep 6.
Au-decorated TiO hollow spheres (Au-THS) have been successfully synthesized via a facile one-pot solvothermal method. The Au-THS hybrid features unique hollow structure with a large specific surface area of 120 m g and homogeneous decoration of Au nanoparticles, giving rise to enhanced light harvesting and charge generation/separation efficiency. When incorporated into the active layer of dye-sensitized solar cells (DSSCs), an improved power conversion efficiency of 7.3% is obtained, which is increased by 37.7% compared with the controlled P25 DSSC. The underlying mechanism to rationalize the efficiency enhancement can be mainly attributed to the strong synergistic effect of superior light scattering ability of the THS and the plasmonic-enhanced effect rendered by the Au nanoparticles.
Au 修饰的 TiO 空心球（Au-THS）已通过简便的一锅溶剂热法成功合成。Au-THS 杂化具有独特的空心结构，比表面积高达 120 m²，Au 纳米粒子均匀分布，从而提高了光捕获和电荷产生/分离效率。当将其掺入染料敏化太阳能电池（DSSC）的活性层中时，获得了 7.3%的功率转换效率，与对照的 P25 DSSC 相比提高了 37.7%。可以将效率提高的基本机制主要归因于 THS 的优异光散射能力和 Au 纳米粒子的等离子体增强效应的协同作用。
