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Abstract A TiO 2 :CaO mixed overlayer was formed on TiO 2 photoelectrodes, and the resulting photoelectrodes were applied to dye-sensitized solar cells (DSSCs). DSSC with the mixed overlayer showed… Click to show full abstract
Abstract A TiO 2 :CaO mixed overlayer was formed on TiO 2 photoelectrodes, and the resulting photoelectrodes were applied to dye-sensitized solar cells (DSSCs). DSSC with the mixed overlayer showed an increase in short-circuit current ( J sc ), open-circuit voltage ( V oc ), and fill factor ( FF ), resulting in a 17% enhancement in photovoltaic performance, compared to that of reference cell. It was found that, by incorporating the mixed overlayer, light harvesting and electron collection efficiency were enhanced, thereby increasing J sc . The enhancement in V oc resulted from a reduced back electron transfer, and the increased FF was attributed to a decreased series resistance and an increased shunt resistance.
Journal Title: Journal of Industrial and Engineering Chemistry
Year Published: 2017
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