期刊
JOURNAL OF MATERIALS SCIENCE
卷 46, 期 23, 页码 7482-7488出版社
SPRINGER
DOI: 10.1007/s10853-011-5718-y
关键词
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资金
- National Natural Science Foundation of China [50973092, 51003089]
- Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province [09K037]
Low-cost quasi-solid-state dye-sensitized solar cells (DSSCs) are designed and fabricated by using a metal-free organic dye and a mesoporous carbon aerogel instead of expensive ruthenium-based sensitizers and Pt electrode. The electrospun TiO2 nanorods are added into a polyvinylidene fluoride (PVDF) solution to form a 3D network nanocomposite gel electrolyte. The presence of TiO2 nanorods in the gel electrolyte obviously increases the ionic conductivity and decreases charge-transfer resistance of the DSSC. The effects of the gel electrolyte and the carbon aerogel counter electrode on electrochemical and photovoltaic properties have been investigated in detail. Particularly, an optimized DSSC with a nanocomposite gel electrolyte and a carbon aerogel counter electrode affords a power conversion efficiency (PCE) of 6.20% at a light intensity of 100 mW cm(-2)
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