Photoelectrode including zinc oxide hemisphere, method of fabricating the same and dye-sensitized solar cell using the same

摘要

Provided are a photoelectrode including a zinc oxide hemisphere, a method of fabricating the same, and a dye-sensitized solar cell using the same. The photoelectrode includes a conductive substrate, a zinc oxide hemisphere disposed on the conductive substrate, and a porous metal oxide layer covering the zinc oxide hemisphere. Light scattering effects of photoelectrodes can be increased, and recombination losses of electrons can be minimized to improve photovoltaic properties.

主权项

1. A photoelectrode comprising:
a conductive substrate; a zinc oxide nano structure pattern comprising a plurality of zinc oxide hemispheres disposed on the conductive substrate; and a porous metal oxide layer covering the zinc oxide nano structure pattern, wherein each of the plurality of zinc oxide hemispheres of the zinc oxide nano structure pattern includes a plurality of zinc oxide nanorods formed radially from a zinc oxide seed layer, wherein each of the plurality of zinc oxide nanorods has a single crystalline structure, and wherein each of the plurality of zinc oxide hemispheres of the zinc oxide nano structure pattern is filled with a zinc oxide material grown laterally from the zinc oxide nanorods to fill each gap between the zinc oxide nanorods.