▎ 摘　　要

NOVELTY - Solar cell comprises graphene layer, titanium dioxide nanoparticles composite layer, and titanium dioxide nano-wire array filled between titanium dioxide nanowires. The graphene layer is used as a seed crystal layer to grow the titanium oxide nanoparticles. The titanium oxide nano-particles composite layer is grown as a barrier layer for the electrolyte solution to pass. USE - Light-positive electrode of solar battery. ADVANTAGE - The light-positive electrode has high specific surface area, not only the accelerating of electron, inhibiting the occurrence of dark current, but also increasing the adsorption amount of the dye, so as to improve the photocurrent and conversion efficiency of DSSC. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation light positive electrode solar cell.