High-Performance Cobalt Selenide and Nickel Selenide Nanocomposite Counter Electrode for Both Iodide/Triiodide and Cobalt(II/III)Redox Couples in Dye-Sensitized Solar Cells

作     者：Zaiwei Wang Hongxia Xu Zhongyi Zhang Xinhong Zhou Shuping Pang Guanglei Cui 

作者机构：Qingdao Key Lab of Solar Energy Utilization and Energy Storage TechnologyQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoShandong 266101China University of Chinese Academy of SciencesBeijing 100080China Qingdao University of Science and TechnologyQingdaoShandong 266101China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2014年第32卷第6期

页      面：491-497页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：This work was supported by the National Program on Key Basic Research Project of China(973 Program)(No.MOST2011CB935700) the National Natural Sci-ence Foundation of China(Nos.21202178,21271180) the Shandong Province Natural Science Foundation(Nos.ZR2011BQ024,ZR2013FZ001 and ZR2010BM016) 

主　　题：counter electrode dye-sensitized solar cells iodide/triiodide cobalt(II/III) metal selenide 

摘      要：The nanocomposites of cobalt selenide and nickel selenide(Co_(0.85)Se/Ni_(0.85)Se)were successfully fabricated on FTO glass by a facile co-electrodeposition method at ambient *** films were used as elec-trocatalysts in dye-sensitized solar cell counter electrodes for regeneration of both iodide/triiodide and cobalt(II/III)redox ***_(0.85)Se/Ni_(0.85)Se were mainly composed of nanoflakes and *** is noted that such nanostructure generated by nanoparticles embedded with 2D nanoflakes led to high active sites and was accessible to cobalt(II/III)electrolyte,delivering better catalytic activity for the reduction of larger volume cobalt(II/III).As a result,for cobalt(II/III)electrolyte,the Co_(0.85)Se/Ni_(0.85)Se based dye-sensitized solar cell performed significantly im-proved efficiency than that of Pt and Co_(0.85)***,the Co_(0.85)Se/Ni_(0.85)Se based dye-sensitized solar cell held comparable energy conversion efficiency to that of Pt and Co_(0.85)Se for iodide/triiodide electrolyte.