▎ 摘　　要

NOVELTY - Strong acid, sodium nitrate and potassium permanganate, and graphene oxide are mixed to obtain precursor. The obtained precursor is mixed with graphene oxide to obtain an acidic aqueous solution. The resultant solution is then filtered to obtain graphene oxide solution. The obtained solution is added to a mixture of solvent, and heated at 150-250 degrees C, and ultrasonically processed to obtain dye-sensitive solar cell coating agent. USE - Manufacture of coating agent for dye-sensitive solar cell (claimed). ADVANTAGE - The method efficiently and economically provides coating agent by simple method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) coating agent; and (2) coating agent-coated dye-sensitive solar cell.