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Graphene-like two-dimensional (2D) transition metal dichalcogenides (TMDCs) have been attracting a wide range of research interests. Molybdenum disulfide (MoS2) is one of the most typical TMDCs. Its particular direct band gap of 1.8 eV in monolayer and layer dependence of band structure tackle the gapless problems of graphene, thus making it scientific and industrial importance. In this Review, we attempt to provide the latest development of optical and electronic properties, synthesis approaches, and potential applications of 2D MoS2. A roadmap towards fabricating hybrid structures based on MoS2 and graphene is highlighted, proposing ways to enhance properties of the individual component and broaden the range of functional applications in various fields, including flexible electronics, energy storage and harvesting as well as electrochemical catalysis.
Li et al. (Sun,) studied this question.