Synergistic effect of TiO_2 hierarchical submicrospheres for high performance dye-sensitized solar cells  

作　　者：Jiang Sheng Linhua Hu Li'e Mo Jichun Ye Songyuan Dai 

机构地区：[1]Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences [2]Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Chinese Academy of Sciences [3]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University

出　　处：《Science China Chemistry》2017年第6期822-828,共7页中国科学（化学英文版）

基　　金：supported by the External Cooperation Program of BIC, Chinese Academy of Sciences (GJHZ1607);the National Natural Science Foundation of China (51572080, 21403262);Zhejiang Provincial Natural Science Foundation of China (LR16F040002);International S&T Cooperation Program of Ningbo (2015D10021)

摘　　要：The performance of dye-sensitized solar cells(DSCs) could be improved by using rationally designed mesoporous film structure for electron collection, dye adsorption and light scattering. The development of a novel double layer film prepared by TiO_2 hierarchical submicrospheres and nanoparticles was reported in this article. The submicrospheres were composed of rutile nanorods of 10 nm diameter and the length of 150–250 nm, which facilitated fast electron transport, charge collection and light scattering. Using a double layer structure consisting of the 10 wt% film as a dye loading layer and the 50 wt% film as the light scattering layer, C101 sensitizer and liquid electrolyte, DSC yielded power conversion efficiency of 9.68% under 1 sun illumination.The performance of dye-sensitized solar cells（DSCs） could be improved by using rationally designed mesoporous film structure for electron collection, dye adsorption and light scattering. The development of a novel double layer film prepared by TiO_2 hierarchical submicrospheres and nanoparticles was reported in this article. The submicrospheres were composed of rutile nanorods of 10 nm diameter and the length of 150–250 nm, which facilitated fast electron transport, charge collection and light scattering. Using a double layer structure consisting of the 10 wt% film as a dye loading layer and the 50 wt% film as the light scattering layer, C101 sensitizer and liquid electrolyte, DSC yielded power conversion efficiency of 9.68% under 1 sun illumination.

关 键 词：dye-sensitized solar cells rutile hierarchical submicrospheres high light harvesting high electron collection efficiency 

分 类 号：TM914.4[电气工程—电力电子与电力传动]