Among the renewable energy generation methods, the most interesting one is the photovoltaic energy technology, which has unlimited usage potential and generates electricity by using renewable sunlight. Solar cells are a secure and viable photoelectric technology that could substitute existing fossil fuel systems. Graphene, with its outstanding electrical and optical properties, mechanical flexibility, adjustable working function, attracts great interest among scientific research groups in many fields. It has been identified as an exceptional material for upcoming energy storage devices. This review examines a few features of graphenes and evaluates whether it is a feasible alternative to the traditional materials used in photovoltaic cells.

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