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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 6
BKCSDE 33(6)
June 20, 2012 

Low Temperature Synthesis of Transparent, Vertically Aligned Anatase TiO2 Nanowire Arrays: Application to Dye Sensitized Solar Cells
Su-Il In, Klaus P. Almtoft, Hyeonseok Lee, Inge H. Andersen, Dongdong Qin, Ningzhong Bao, C. A. Grimes
Anatase, Titanium dioxide, Nanowire, Nanowire array
We present a low temperature (≈ 70 oC) method to prepare anatase, vertically aligned feather-like TiO2 (VAFT) nanowire arrays via reactive pulsed DC magnetron sputtering. The synthesis method is general, offering a promising strategy for preparing crystalline nanowire metal oxide films for applications including gas sensing, photocatalysis, and 3rd generation photovoltaics. As an example application, anatase nanowire films are grown on fluorine doped tin oxide coated glass substrates and used as the photoanode in dye sensitized solar cells (DSSCs). AM1.5G power conversion efficiencies for the solar cells made of 1 μm thick VAFT have reached 0.42%, which compares favorably to solar cells made of the same thickness P25 TiO2 (0.35%).
1989 - 1992
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