**2-D Graphene Based Matrix**

Energy is the crucial and universal input to drive life/routine cycles of human and nature. Conventional energy generating sources are nonrenewable as the native reserves are depleting extensively in addition to fossil-fuel burning that causes serious challenges such as global-warming and environmental pollution, so in this perspective energy generated through green resources is inevitable. Nonconservative renewable energy resources (such as solar and wind) are inexhaustible and abundant and this leads to a viable solution for such environment threats. In the light of the serious issue of energy generation through green sources, the research group of *Tahira Mahmood* presented a good summary of the newest progress in 2-D graphene reinforced nano-metal oxide based composite to be used as emerging feedstock for making photo-anodes in 3G advanced solar-cells such as dye-sensitized solar cells (DSSCs) and perovskite solar cells (PSCs). While discussing their investigation data, considerable attention was given to potential turn-key solutions to address burning challenges involved in making cheap and efficient photo-anodic substitutes for usual platinum electrodes. Many approaches are discussed in this respect, including the superior materials obtained through graphene matrix in designing novel counter electrodes in 3rd generation solar cells. Amid new materials with potential utility in promising 3G solar cells, graphene derivatives are worthy due to unique features such as conducting anodic potential and electron donor and acceptor characters. The authors have discussed the driving factors such as increasing charge transportations and reducing charge recombination viable for enhancing the performance of graphene nanocomposite as a photo-anode/electrode in DSSCs and PSCs solar cells.
