期刊
JOURNAL OF POWER SOURCES
卷 207, 期 -, 页码 216-221出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2012.01.143
关键词
Quasi-solid-state; Dye-sensitized solar cells; Ionic liquid-tethered nanoparticle; Poly(ionic liquids); Nanocomposite
资金
- Natural Science Foundation of China [21174102]
- Natural Science Foundation of Jiangsu Province [BK2011274]
- Research Fund for the Doctoral Program of Higher Education [20103201110003]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Ionic liquid-tethered TiO2 nanoparticles are prepared by tethering 1-methyl-3-[(triethoxysilyl)propyl]imidazolium chloride (TMICl) to TiO2 nanoparticles. The quasi-solid-state dye-sensitized solar cells containing 15 wt% of ionic liquid-tethered nanoparticle/poly(ionic liquid) hybrid electrolytes show an overall power conversion efficiency of similar to 5.67% under simulated AM 1.5 solar spectrum irradiation at 50 mW cm(-2). Compared with unmodified TiO2 nanoparticles, ionic liquid-tethered nanoparticle based hybrid gel electrolytes show enhanced short circuit current density (J(sc)), open circuit voltage (V-oc), photoelectric conversion efficiency (eta), and better long-term stability of the devices. These results indicate that the cells based on ionic liquid-tethered nanoparticle hybrid electrolytes could overcome the drawbacks of volatile liquid electrolytes, and offer a feasible method to fabricate quasi-solid-state DSSCs in future practical applications. (C) 2012 Elsevier B.V. All rights reserved.
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