Dye-sensitized solar cells (DSCs) are promising next-generation photovoltaic devices owing to their low manufacture cost and potential high conversion efficiency. However, the efficiency of DSCs is still needed further improvement in comparison with bulk silicon solar cells. In this presentation, strategy for improvement of the efficiency of DSCs is discussed on the basis of increasing the parameters that determine the efficiency: fill factor (FF), short-circuit current density (JSC), and open-circuit voltage (VOC).Finally, a cell with black dye and a new co-adsorbent is reported, which was fabricated based on the strategy. Current-voltage characteristics of the cell were measured by Research Center for Photovoltaic, National Institute of Advanced Industrial Science and Technology (AIST, Japan) using a metal mask and with an aperture area of 0.231 cm2 under standard AM 1.5 sunlight (100.0 mW/cm2). An overall conversion efficiency of 11.4% was achieved which is the highest confirmed efficiency of DSCs.

Highly efficient dye-sensitized solar cells

243rd National Meeting (2012)

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