Jpn. J. Appl. Phys. 45 (2006) pp. L638-L640  |Next Article|  |Table of Contents|
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Express Letter

Dye-Sensitized Solar Cells with Conversion Efficiency of 11.1%

Yasuo Chiba, Ashraful Islam, Yuki Watanabe, Ryoichi Komiya, Naoki Koide and Liyuan Han

Solar Systems Development Center, Sharp Corporation, 282-1 Hajikami, Katsuragi, Nara 639-2198, Japan

(Received June 7, 2006; accepted June 9, 2006; published online June 23, 2006)

Dye-sensitized solar cells (DSCs) using titanium dioxide (TiO2) electrodes with different haze were investigated. It was found that the incident photon to current efficiency (IPCE) of DSCs increases with increase in the haze of the TiO2 electrodes, especially in the near infrared wavelength region. Conversion efficiency of 11.1%, measured by a public test center, was achieved using high haze TiO2 electrodes. This indicates that raising the haze of TiO2 electrodes is an effective technique for improvement of conversion efficiency.

DOI: 10.1143/JJAP.45.L638
KEYWORDS:dye-sensitized solar cells, haze, internal resistance, TiO2 electrode, IPCE

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