A solar cell having a plurality of micro-channels. Specifically, a
plurality of micro-channels are formed in a semiconductor material that
has been disposed on the surface of a planar electrode. The semiconductor
material is saturated with dye and injected with an electrolyte solution.
The micro-channels are insulated and filled with a material that provides
a catalyst material for the electron transfer to an oxidant during the
photovoltaic process. The catalyst disposed in the micro-channels forms
the upper electrode of the solar cell. The micro-channels are arranged to
provide a reduced migration path for the oxidant.