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Transient photocurrent and photovoltage studies on charge transport in dye sensitized solar cells made from the composites of TiO2 nanofibers and nanoparticles

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6 Author(s)
Wang, Xiaoxu ; Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA ; Karanjit, Sudeep ; Zhang, Lifeng ; Fong, Hao
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Herein, we report the transient photocurrent and photovoltage studies on the charge transport in dye sensitized solar cells (DSSCs) made from the composites of electrospun titanium oxide (TiO2) nanofibers, and conventional TiO2 nanoparticles. The results on charge transport parameters (including the charge recombination lifetime, the electron transport lifetime, and the diffusion length) indicated that the addition of TiO2 nanofibers into composite photoanodes led to substantial improvement on the efficiency of charge collection, suggesting that the composites of nanoparticles and one-dimensional nanostructures are promising materials for the development of DSSCs with high efficiency.

Published in:

Applied Physics Letters  (Volume:98 ,  Issue: 8 )

Date of Publication:

Feb 2011

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