High Efficiency of Dye-Sensitized Solar Cell and Module

Author

Han, Liyuan ; Fukui, Atsushi ; Fuke, Nobuhiro ; Koide, Naoki ; Yamanaka, Ryohsuke

Author_Institution

Solar Syst. Dev., Sharp Corp., Nara

Volume

1

fYear

2006

fDate

38838

Firstpage

179

Lastpage

182

Abstract

The improvement of cell performance of dye-sensitized solar cells (DSCs) was investigated by means of haze of TiO₂ electrodes and series-internal resistance. It was found that the high haze of TiO ₂ electrodes effectively improves the external quantum efficiency of DSCs. The series-internal resistance is successfully reduced by increasing the surface roughness of platinum counter electrodes and by decreasing the thickness of electrolyte layer. The highest single cell efficiency of 11.1% (aperture area: 0.219 cm²) was achieved and confirmed by a public test center (AIST). Furthermore, large-scaled cell was fabricated using current collecting metal grids, and the efficiency of 6.8% (aperture area: 101 cm²) was obtained. Moreover, integrated DSC module was investigated and the efficiency of 6.3% (aperture area: 26.50 cm²) was also confirmed by the public test center

Keywords

dyes; electrodes; electrolytes; solar cells; surface roughness; titanium compounds; TiO₂; current collecting metal grids; dye-sensitized solar cell; electrolyte layer; integrated DSC module; platinum counter electrodes; quantum efficiency; series-internal resistance; surface roughness; Apertures; Counting circuits; Electrodes; Equivalent circuits; Extinction coefficients; Photovoltaic cells; Platinum; Solar system; Surface resistance; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, Conference Record of the 2006 IEEE 4th World Conference on

Conference_Location

Waikoloa, HI

Print_ISBN

1-4244-0017-1

Electronic_ISBN

1-4244-0017-1

Type

conf

DOI

10.1109/WCPEC.2006.279411

Filename

4059591