Low resistance, high mobility reduced graphene oxide films prepared with commercial antioxidant supplements

Abstract

In this work, conductive reduced graphene oxide films onto glass substrates were prepared by immersion of the substrate at room temperature in a suspension of graphene oxide and antioxidant commercial supplements such as resveratrol, omega-3, triple-dosed omega-3 and astaxanthin. The films prepared with triple-dosed omega-3 and astaxanthin showed a defined diffraction peak at the graphite 2 theta position and the lower oxygen contents. Raman spectra indicate the restoring of the sp2 character and increase in the crystallite size, which increased the electron mobility from 0.009 cm2V−1s−1 in the GO film to 68 cm2V−1s−1 and decreased sheet resistance from 4.6 × 1010 ohm/sq in the graphene oxide film to the lowest achieved sheet resistance of 92.5 O/sq in the film reduced with astaxhantin.