期刊
JOURNAL OF POWER SOURCES
卷 285, 期 -, 页码 70-75出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.03.061
关键词
Polymer electrolyte; Redox couple; Solar cells; Stability
资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-10ER46728]
Liquid electrolytes in quantum dot sensitized solar cells (QDSSCs) cause device packaging and stability issues, and in this work a new type of solid-state electrolyte based on PEO-PVDF polymer blends with S/tetramethylammonium sulfate (S/TMAS) redox additive is investigated. UV-Vis and ionic conductivity measurements are performed to characterize the electrolytes' optical and electrochemical properties. QDSSCs are fabricated using the polymer electrolytes, and a possible additional redox process in the cells is proposed. The study shows that the PEO-PVDF polymer electrolyte with the S/TMAS redox additive can improve the solar cell incident photon-to-current conversion efficiency and stability. This research could shed light on the study of novel solid-state QDSSCs based on polymer electrolytes with further enhanced performance. (C) 2015 Elsevier B.V. All rights reserved.
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