Electronic and Optical Properties of van der Waals Heterostructures Based on Two-Dimensional Perovskite (PEA)₂PbI₄ and Black Phosphorus.

ABSTRACT: Combining two-dimensional (2D) perovskites with other 2D materials to form a van der Waals (vdW) heterostructure has emerged as an intriguing way of designing electronic and optoelectronic devices. The structural, electronic, and optical properties of the 2D (PEA)₂PbI₄/black phosphorus (BP) [PEA:(C₄H₉NH₃)⁺] vdW heterostructure have been investigated using first-principles calculations. We found that the (PEA)₂PbI₄/BP heterostructure shows a high stability at room temperature. It is demonstrated that the (PEA)₂PbI₄/BP heterostructure exhibits a type-I band arrangement with high carrier mobility. Moreover, the band gap and band offset of (PEA)₂PbI₄/BP can be eff

SUBMITTER: Li D 

PROVIDER: S-EPMC8374907 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature