Self-assembled composite thin film counter electrode of cobalt sulfide/functionalized graphene for dye-sensitized solar cells

被引：6
作者：
Sun, Lijuan [1 ]
Li, Yuan [1 ]
Dan, Yongping [1 ]
Lu, Xiangyang [1 ]
Li, Xiaoquan [1 ]
Wang, Fengge [1 ]
Han, Xixi [1 ]
Zhang, Ying [2 ]
机构：
[1] Zhongyuan Univ Technol, Zhengzhou 450000, Henan, Peoples R China
[2] Susquehanna Int Grp, Bala Cynwyd, PA 19004 USA
来源：
THIN SOLID FILMS | 2019年 / 679卷
关键词：
Dye-sensitized solar cell; Counter electrode; Cobalt sulfide; Functionalized graphene; LOW-COST; FUNCTIONALIZED GRAPHENE; MAGNETIC-PROPERTIES; OXIDE; ALLOY/GRAPHENE; NANOPARTICLES; TEMPERATURE; PERFORMANCE; EVOLUTION; CATALYST;
D O I：
10.1016/j.tsf.2019.04.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cobalt sulfide/functionalized graphene (CFG) composite thin film counter electrode has been obtained via a self-assembly method based on the electrostatic interactions between ion and graphene with charge. Consequently, without the aid of rigorous equipments and polyelectrolytes, the functionalized grapheme with opposite charge can be directly assembled to form graphene thin films in an aqueous environment, then the cobalt cation and sulfur anion adsorb on the graphene film to form cobalt sulfide nanoparticle. Due to the good dispersion of CoS nanoparticle, which is facilitated by functional groups on graphene, the DSSC with CFG electrode generates comparable power conversion efficiency (5.37%) to that of the Pt electrode (5.68%).
引用
收藏
页码：8 / 14
页数：7
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