Elbanna A, Chaykun K, Lekina Y, Liu YD, Febriansyah B et al. Perovskite-transition metal dichalcogenides heterostructures: recent advances and future perspectives. Opto-Electron Sci 1, 220006 (2022).

Novel semiconductor materials are critical for optoelectronic applications. Recently, halide perovskites and two-dimensional transition metal dichalcogenides (TMDs) have attracted extensive attentions for their fascinating properties in optoelectronics. Halide perovskites are excellent candidates for solar cell applications for their low-cost and tunability of properties. 2D TMDs offer many unprecedented opportunities for optoelectronics for their strong quantum confinement and easy in forming van der Waals heterostructures. Interfacing perovskite with 2D materials significantly broadens the application range and enhances the performance of the functional devices. This cover paper reviews the synthetic, fundamental, and applied aspects of perovskites, TMDs and their heterostructures. The band alignment and charge charrier generation, transfer and recombination at the heterojunction are discussed. The methods for material synthesis and device fabrication are introduced. Prominent applications on solar cells and photodetectors of the perovskite-TMD heterostructures are elaborated, with improved power conversion efficiency in solar cell due to TMD's contribution to the charge extraction and enhanced sensitivity in photodetectors exceeding that of commercial ones. The authors also provided their perspectives on the future studies and developments of the perovskite-TMD heterostructures.