Highly efficient plastic-substrate dye-sensitized solar cells with validated conversion efficiency of 7.6

• Published in: Solar energy materials and solar cells Vol. 94; no. 5; pp. 812 - 816
• Main Authors: Yamaguchi, Takeshi, Tobe, Nobuyuki, Matsumoto, Daisuke, Nagai, Takuma, Arakawa, Hironori
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.05.2010; Elsevier
• Subjects: Applied sciences; Dye-sensitized solar cell; Energy; Exact sciences and technology; Low-temperature fabrication; Natural energy; Photovoltaic conversion; Plastic-substrate; Solar cells. Photoelectrochemical cells; Solar energy; Plastic-substrate; Dye-sensitized solar cell; Low-temperature fabrication; Manufacturing; Plastics; Low temperature
• ISSN: 0927-0248; 1879-3398
• DOI: 10.1016/j.solmat.2009.12.029

We have developed highly efficient plastic-substrate dye-sensitized solar cells (DSCs) by the press method. The conversion efficiency of plastic-substrate DSCs could be improved by adjusting the press conditions, the thickness of the TiO 2 layer, and the surface treatment of the plastic-substrate. An efficiency of 8% was achieved for such cells with a 0.25 cm 2 cell area under 100 mW/cm 2 (AM 1.5, 1 sun). We also fabricated 1.111 cm 2-sized plastic-substrate DSC that had an efficiency of 7.6%, which was validated by the national standards institute for photovoltaic measurements in Japan, the Research Center for Photovoltaics (RCPV) at the National Institute of Advanced Industrial Science and Technology (AIST).