Photophysics of Two-Dimensional Semiconducting Organic-Inorganic Metal-Halide Perovskites
arXiv:2108.13501 · doi:10.1146/annurev-physchem-082820-015402
Abstract
2D organic-inorganic hybrid perovskites (2DHPs) consist of alternating anionic metal-halide and cationic organic layers. They have widely tunable structural and optical properties. We review the role of the organic cation in defining the structural and optical properties of 2DHPs through example lead iodide 2DHPs. Even though excitons reside in the metal halide layers, the organic and inorganic frameworks cannot be separated-they must be considered as a single unit to fully understand the photophysics of 2DHPs. We correlate cation-induced distortion and disorder in the inorganic lattice with the resulting optical properties. We also discuss the role of the cation in creating and altering the discrete excitonic structure that appears at cryogenic temperatures in some 2DHPs, including the cation-dependent presence of hot exciton photoluminescence. We conclude our review with an outlook for 2DHPs, highlighting existing gaps in fundamental knowledge as well as potential future applications.
arXiv commentReview article submitted to Annu. Rev. Phys. Chem. 35 pages, 8 figures. This version corrects a few typos
References in corpus (13)
- Determination of the exciton binding energy and effective masses for the methylammonium and formamidinium lead tri-halide perovskite family
- Exciton-polariton condensates
- Phonon coherences reveal the polaronic character of excitons in two-dimensional lead-halide perovskites
- Optical spectroscopy of two-dimensional layered perovskite
- The Geometric Blueprint of Perovskites
- An electronic model for self-assembled hybrid organic/perovskite semiconductors: reverse band edge electronic states ordering and spin-orbit coupling
- Understanding the Instability of the Halide Perovskite CsPbI through Temperature-Dependent Structural Analysis
- Perspective: Exciton polarons in two-dimensional hybrid metal-halide perovskites
- Exciton-polaron spectral structures in two dimensional hybrid lead-halide perovskites
- Stable biexcitons in two-dimensional metal-halide perovskites with strong dynamic lattice disorder
- Visualization of Dynamic Polaronic Strain Fields in Hybrid Lead Halide Perovskites
- Tailoring Hot Exciton Dynamics in 2D Hybrid Perovskites through Cation Modification
- Electron-phonon couplings inherent in polarons drive exciton dynamics in two-dimensional metal-halide perovskites