Abstract

Using reduced graphene oxide (rGO) films as the transparent conductive coating,inorganic/organic hybrid nanostructure heterojunction photovoltaic devices have beenfabricated through hydrothermal synthesis of vertically aligned ZnO nanorods(ZnO-NRs) and nanotubes (ZnO-NTs) on rGO films followed by the spin casting of apoly(3-hexylthiophene) (P3HT) film. The data show that larger interfacial area inZnO-NT/P3HT composites improves the exciton dissociation and the higher electrodeconductance of rGO films helps the power output. This study offers an alternative tomanufacturing nanostructure heterojunction solar cells at low temperatures usingpotentially low cost materials.

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