期刊
SOLAR ENERGY
卷 84, 期 3, 页码 373-378出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2009.11.008
关键词
Dye-sensitized solar cells; Ionic liquid; Electrolyte; Sulfonium
资金
- National Basic Research Program of China [2006CB202600]
- National High Technology Research and Development Program of China [2009AA050603]
- Chinese Academy of Sciences for Key Topics in Innovation Engineering [KGCX2-YW-326, 075FCQ0125]
A new ionic liquid S-propyltetrahydrothiophenium iodide (T3I) was developed as the solvent and iodide ion source in electrolyte for dye-sensitized solar cells. The electrochemical behavior of the I-3(-)/I- redox couple and effect of additives in this ionic liquid system was tested and the results showed that this ionic liquid electrolyte revealed good conducting abilities and potential application for solar devices. The effects of LiI and dark-current inhibitors were investigated. The dye-sensitized solar cell with the electrolyte (0.1 mol L-1 LiI, 0.35 mol L-1 12, 0.5 mol L-1 NMBI in pure T3I) gave short-circuit photocurrent density (J(sc)) of 11.22 mA cm(2), open-circuit voltage (V-oc) of 0.61 V, and fill factor (FE) of 0.51, corresponding to the photoelectric conversion efficiency (eta) of 3.51% under one Sun (AM 1.5). (C) 2009 Elsevier Ltd. All rights reserved.
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