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Platinum/titanium bilayer deposited on polymer film as efficient counter electrodes for plastic dye-sensitized solar cells

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7 Author(s)
Ikegami, M. ; Graduate School of Engineering, Toin University of Yokohama, Yokohama, Kanagawa 225-8502, Japan ; Miyoshi, K. ; Miyasaka, T. ; Teshima, K.
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A surface-rich platinum/titanium bilayer was deposited on poly(ethylene naphthalate) film by vacuum sputtering as counterelectrode for plastic dye-sensitized solar cells (DSSCs). Compared to the electrodes made of pure Pt layer, this electrode maintained similar electrochemical catalytic effect at relative low Pt usage. Current-voltage characteristics of the plastic DSSC at this stage stand at 0.69 V on VOC, 9.97 mA/cm2 on ISC, 0.69 on fill factor, and 4.31% cell efficiency under AM1.5, 100 mW/cm2 illumination.

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Applied Physics Letters  (Volume:90 ,  Issue: 15 )