Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 12, Issue 12, Pages 1776-1779Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.10.022
Keywords
Quantum dot-sensitized solar cell; Quasi-solid-state electrolyte; Polyacrylamide; Hydrogel; Ionic conductivity
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Funding
- NSFC [20725311, 20673141, 20703063, 20721140647]
- Ministry of Science and Technology of China [2006CB202606, 2007CB936501, 2006AA03Z341]
- Chinese Academy of Sciences [KJCX2-YW-W27, KGCX2-YW-363, KGCX2-YW-386-1]
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Chemically crosslinked polyacrylamide-based hydrogel has been first used as the polymer matrix to prepare quasi-solid-state polysulfide electrolyte for CdS/CdSe co-sensitized solar cells (QDSCs). The room temperature ionic conductivity of the gel electrolyte reaches 0.093 S.cm(-1). QDSCs based on this quasi-solid-state electrolyte can present up to 4.0% of light-to-electricity conversion efficiency. Meanwhile, the interfacial recombination at TiO2/electrolyte interface of the cell is also investigated by Electrochemical Impedance Spectroscopy (EIS). (C) 2010 Elsevier B.V. All rights reserved.
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