Abstract
Graphene has been rightly called the wonderous 2D material owing to its several unique properties. Despite continuous research efforts on the development of reduced graphene oxide (rGO), its optical properties remain largely unexplored. Herein we have explored the light irradiation effects on the optical and structural properties of rGO. Crystalline natured rGO was prepared by simple microwave exfoliation and ultra-sonication technique. Furthermore, rGO of hydrophobic (pho-rGO) and hydrophilic (phi-rGO) nature were derived from the same source. Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS) measurements revealed a reduction in the sheet size of phi-rGO upon light irradiation. Moreover, an increment in the light transmission was also observed in the light treated phi-rGO, which was verified for solar cell application. On the other hand, pho-rGO was used in creating a dust-repellent coating on glass surface without impacting light transmission.
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