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Issue 35, 2010
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Hybrid solar cells based on poly(3-hexylthiophene) and electrospun TiO2 nanofibers with effective interface modification

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Abstract

Electrospinning, a low cost production method for large area nanofibrous films, is employed to fabricate organic-inorganic hybrid solar cells based on poly(3-hexylthiophene) and TiO2 nanofibers. The performance of the hybrid solar cells is optimized by modifying the surface of TiO2 nanofibers with ruthenium dye (N719) and 3-phenylpropionic acid, which results in the average power conversion efficiency of about 1.1% under AM 1.5G simulated illumination (100 mW cm−2). It is found that the co-modification of N719 and 3-phenylpropionic acid on TiO2 can induce more ordered backbone packing of poly(3-hexylthiophene) layer, lower density of trap states on the surface of TiO2 and longer lifetime of carriers in the active layer due to retarded recombination process by the modifier. Therefore the interface modification can dramatically enhance the photovoltaic performance.

Graphical abstract: Hybrid solar cells based on poly(3-hexylthiophene) and electrospun TiO2 nanofibers with effective interface modification

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Publication details

The article was received on 14 May 2010, accepted on 15 Jun 2010 and first published on 30 Jul 2010


Article type: Paper
DOI: 10.1039/C0JM01455A
Citation: J. Mater. Chem., 2010,20, 7366-7371
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    Hybrid solar cells based on poly(3-hexylthiophene) and electrospun TiO2 nanofibers with effective interface modification

    Q. Tai, X. Zhao and F. Yan, J. Mater. Chem., 2010, 20, 7366
    DOI: 10.1039/C0JM01455A

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