The formation of SAMs on oxides and semiconductor surfaces has become a significant issue recently in its Various technological applications. We report an easy and convenient method for the tailoring of an ITO surface with an amine functional group. A dense self-assembled monolayer of 1,12-diaminododecane was formed on the ITO surface. The long alkyl chain amine was observed for the first time to form a stable self-assembled monolayer. The amine group in diaminododecane was found to have good affinity for the ITO material. The diamine functionality of diaminododecane was utilized for the preparation of another layer of heteropolyacid on the SAM/ITO surface.