期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 4, 页码 1461-1468出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta08209a
关键词
-
资金
- National Natural Science Foundation of China [21421004, 91433106, 21301059]
- Open Project of State Key Laboratory of Chemical Engineering [SKL-ChE-14C04]
- Fundamental Research Funds for the Central Universities in China
Limited by the volatilization and leakage of liquid electrolytes, the long-term stability of liquid-junction quantum dot sensitized solar cells (QDSCs) remains a main challenge for the application of QDSCs. Herein, a polyelectrolyte with superior water-absorbing and water-holding capacity, sodium polyacrylate (PAAS), was attempted to gelate conventional aqueous polysulfide electrolytes to construct quasi-solid-state QDSCs. PAAS gel electrolytes have a comparable conductivity with liquid polysulfide electrolytes. Meanwhile, the PAAS gel could penetrate readily into the framework of mesoporous TiO2 film electrodes due to the strong coordination ability of carboxylate groups on PAAS polymer chains with metal ions. Benefited from the high conductivity of the PAAS gel and its perfect contact with the TiO2 surface, an impressive photovoltaic performance with a power conversion efficiency of 8.54% in one full sunlight, which is among the best performance for QDSCs, was achieved for CdSeTe QDSCs. Furthermore, the light-soaking stability of the resulting cell devices is significantly improved in comparison with that of the conventional aqueous polysulfide electrolyte based ones.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据