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Since graphene was discovered, the study of two-dimensional(2D) materials with atomic thickness has become a hot spot. To prepare different 2D materials,different methods have been groped, such as mechanical exfoliation, chemical vapor deposition(CVD), liquid-phase exfoliation. This review mainly introduced the sonication liquid-phase exfoliation, an effective method to prepare 2D materials. Compared with mechanical exfoliation and CVD methods, liquid-phase exfoliation is convenient and costeffective and provides high yield. We focused on both theoretical and experimental details of this method. This method was reviewed according to the development of 2D materials from graphene, h-BN to transition metal chalcogenides(TMDs) and black phosphorus nanosheets.We discussed the applications of liquid-exfoliated 2D materials including micro- and nanoelectrical devices,photoelectric devices, and energy storage devices.
Since graphene was discovered, the study of two-dimensional (2D) materials with atomic thickness has become a hot spot. To prepare different 2D materials, different methods have been groped, such as mechanical exfoliation, chemical vapor deposition (CVD) Compared with mechanical exfoliation and CVD methods, liquid-phase exfoliation is convenient and costeffective and provides high yield. We focused on both theoretical and experimental details of this method. This method was reviewed according to the development of 2D materials from graphene, h-BN to transition metal chalcogenides (TMDs) and black phosphorus nanosheets. We discussed the applications of liquid-exfoliated 2D materials including micro- and nanoelectrical devices , photoelectric devices, and energy storage devices.