中国物理B ›› 2012, Vol. 21 ›› Issue (11): 118101-118101.doi: 10.1088/1674-1056/21/11/118101
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
李萍剑, 程凯, 陈远富, 王泽高, 郝昕, 刘竞博, 贺加瑞, 张万里
Li Ping-Jian (李萍剑), Chen Kai (程凯), Chen Yuan-Fu (陈远富), Wang Ze-Gao (王泽高), Hao Xin (郝昕), Liu Jing-Bo (刘竞博), He Jia-Rui (贺加瑞), Zhang Wan-Li (张万里 )
摘要: Platinum nanoparticles (PtNPs)/graphene composite materials are synthesized by a controlled chemical reduction of H2PtCl6 on graphene sheets. The electrocatalytic activity of PtNPs/graphene composite counter electrode for dye-sensitized solar cell (DSSC) is investigated. The results demonstrate that PtNPs/graphene composite has high electrocatalytic activity for dye-sensitized solar cell. The cell employing PtNPs (1.6 wt%)/graphene counter electrode reaches an conversion efficiency (η) of 3.89% upon the excitation of 100 mW/cm2 AM 1.5 white light, which is comparable to that of the cell with Pt-film counter electrode (η =3.76%). It suggests that one can use only 14% Pt content of conventional Pt-film counter electrode to obtain a comparable conversion efficiency. So it is promising to obtain high performance DSSC by using PtNPs/graphene composite with very low Pt content as counter electrode due to its simplicity, low cost, and large scalability.
中图分类号: (Graphene)