期刊
ELECTROCHIMICA ACTA
卷 283, 期 -, 页码 597-602出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.06.199
关键词
Quasi-solid-state quantum dot-sensitized; solar cell; Polymer gel electrolyte; Hydrogel; Graphene; Photovoltaics
资金
- Natural Science Foundation of China [11564026, 11774141]
- Natural Science Foundation of Jiangxi Province [20171BAB202036, 20161BAB212035]
- Outstanding Youth Funds of Jiangxi Province [20171BCB23051, 20171BCB23052]
- Science and Technology Project of the Education Department of Jiangxi Province, China [GJJ160681]
Quantum dot-sensitized solar cells (QDSCs) are promising for future renewable sources. By addressing the issues on liquid-electrolyte leakage and sluggish charge transportation, a class of graphene oxide tailored polyacrylamide (PAAm/GO) gel electrolytes are synthesized for quasi-solid-state QDSC applications. The conducting pathways with interconnected GO species can catalyze reduction reaction from S-n(2-) to S2- and therefore shorten charge-transfer length. Upon illumination by simulated sunlight (AM1.5, 100 mW cm(-2)), the optimized QDSC with PAAm/0.9% GO yields a maximized power conversion efficiency of 4.10% in comparison with 1.78% for the device free of GO. Arising from the good retention of liquid electrolyte by three-dimensional PAAM/GO framework, the final quasi-solid-state QDSCs present good long-term stability. (C) 2018 Elsevier Ltd. All rights reserved.
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