Effect of MWCNT Inclusion in TiO₂ Nanowire Array Film on the Photoelectrochemical Performance

Menglei Chang 1,2),Liangpeng Wu 1),Xinjun Li 1) and Wei Xu 3) 1) Key Laboratory of Renewable Energy and Gas Hydrate,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China 2) Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3) Environment Engineering Co.Ltd,China Shipbuilding Industry Corporation,Wuhan 430064,China

摘 要：Rutile TiO2 nanowire array films with multi-walled carbon nanotube（MWCNT） inclusion perpendicularly grown on fluorine-doped tin oxide（FTO） substrate were prepared by a facile hydrothermal method.The absorption edges of the TiO2 nanowire array films are blue-shifted with increasing MWCNT content.The resistance of the TiO2 nanowire array film is decreased by MWCNT inclusion.The optimum TiO2 /MWCNT molar ratio in the feedstock is 1:0.1.For the TiO2 nanowire array film with MWCNT inclusion served as electrode in dye-sensitized solar cell（DSSC）,an overall 194% increase of photoelectric conversion efficiency has been achieved.

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