Structurally Tunable Two-Dimensional Layered Perovskites: From Confinement and Enhanced Charge Transport to Prolonged Hot Carrier Cooling Dynamics.
KAUST DepartmentMaterial Science and Engineering Program
KAUST Catalysis Center (KCC)
Physical Science and Engineering (PSE) Division
Chemical Science Program
KAUST Solar Center (KSC)
Permanent link to this recordhttp://hdl.handle.net/10754/664107
MetadataShow full item record
AbstractTwo-dimensional (2D) layered metal halide perovskites are potential alternatives to three-dimensional perovskites in optoelectronic applications owing to their improved photostabilities and chemical stabilities. Recent investigations of 2D metal halide perovskites have demonstrated interesting optical and electronic properties of various structures that are controlled by their elemental composition and organic spacers. However, photovoltaic devices that utilize 2D perovskites suffer from poor device efficiency due to inefficient charge carrier separation and extraction. In this Perspective, we shed light on confinement control and structural variation strategies that provide better parameters for the efficient collection of charges. The influence of these strategies on the exciton binding energies, charge-carrier mobilities, hot-carrier dynamics, and electron-phonon coupling in 2D perovskites is thoroughly discussed; these parameters highlight unique opportunities for further system optimization. Beyond the tunability of these fundamental parameters, we conclude this Perspective with the most notable strategies for attaining 2D perovskites with reduced bandgaps to better suit photovoltaic applications.
CitationEl-Ballouli, A. O., Bakr, O. M., & Mohammed, O. F. (2020). Structurally Tunable Two-Dimensional Layered Perovskites: From Confinement and Enhanced Charge Transport to Prolonged Hot Carrier Cooling Dynamics. The Journal of Physical Chemistry Letters, 5705–5718. doi:10.1021/acs.jpclett.0c00359
SponsorsThe research reported in this publication was supported by King Abdullah University of Science & Technology (KAUST), Saudi Arabia.
PublisherAmerican Chemical Society (ACS)
- Properties of Excitons and Photogenerated Charge Carriers in Metal Halide Perovskites.
- Authors: Jiang Y, Wang X, Pan A
- Issue date: 2019 Nov
- Synthesis, optoelectronic properties and applications of halide perovskites.
- Authors: Chouhan L, Ghimire S, Subrahmanyam C, Miyasaka T, Biju V
- Issue date: 2020 May 26
- Heterogeneous Photon Recycling and Charge Diffusion Enhance Charge Transport in Quasi-2D Lead-Halide Perovskite Films.
- Authors: Motti SG, Crothers T, Yang R, Cao Y, Li R, Johnston MB, Wang J, Herz LM
- Issue date: 2019 Jun 12
- Organic-inorganic hybrid lead halide perovskites for optoelectronic and electronic applications.
- Authors: Zhao Y, Zhu K
- Issue date: 2016 Feb 7
- Merits and Challenges of Ruddlesden-Popper Soft Halide Perovskites in Electro-Optics and Optoelectronics.
- Authors: Chen Z, Guo Y, Wertz E, Shi J
- Issue date: 2019 Jan