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Organic-dye-sensitized solar cells offer increased conversion efficiency, lower manufacturing costs
AIST has developed efficient dye-sensitized solar cells (DSSCs) based on novel organic-dye molecules (MK dyes). These solar cells exhibit good incident photon-to-current conversion efficiency in the range from the UV to near-IR regions (400 to 800 nm). At the present, solar energy-to-electricity conversion efficiencies of up to 8.3% have been attained with a DSSC based on MK-2 dye under AM 1.5 G irradiation (100 mW cm–2). We also have been developing large-area module systems of DSSCs based on organic dyes for commercial applications. Our results strongly demonstrate the promising performance of DSSCs based on organic-dye molecules designed using molecular photovoltaics. We obtained good, stable performance from DSSCs based on organic dyes during more than 1000 h of AM 1.5 G irradiation (UV cut-off, 100 mW cm–2, 50–55°C).last decade interest dye-sensitized solar cells (DSSCs) promising molecular photovoltaic increased unconventional performance potential low-cost production fundamental principles studied extensively commercial applications Figure shows schematic presents mechanism electric power generation main components nanocrystalline oxide semiconductor electrode sensitizer electrolyte redox counter photoresponse range mediates primary steps photon absorption subsequent electron transfer

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