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1 April 2022 Hot carrier dynamics, relaxation, and the effects of polaron formation in metal-halide perovskites
Shashi Sourabh, Vincent R. Whiteside, Brandon K. Durant, Rebecca A. Scheidt, Yaxin Zhai, Kang Wang, Do Young Kim, Matthew C. Beard, Ian R. Sellers
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Proceedings Volume PC11996, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI; PC1199607 (2022) https://doi.org/10.1117/12.2609944
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
Metal-halide perovskites are emerging as an intriguing class of semiconductors with significant potential for photovoltaics. Here, several perovskites are discussed that have been assessed via various experimental techniques to determine the effects of their composition, dimensionality, and structural stability on hot carriers and polaron formation. It will be shown that polarons formed in these systems are strongly affected by the binding energy and nature of the excitons in the materials. Notably, the hot carrier dynamics in perovskites is strongly affected by their low thermal conductivity, which inhibits the dissipation of heat in the material.
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Shashi Sourabh, Vincent R. Whiteside, Brandon K. Durant, Rebecca A. Scheidt, Yaxin Zhai, Kang Wang, Do Young Kim, Matthew C. Beard, and Ian R. Sellers "Hot carrier dynamics, relaxation, and the effects of polaron formation in metal-halide perovskites", Proc. SPIE PC11996, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI, PC1199607 (1 April 2022); https://doi.org/10.1117/12.2609944
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KEYWORDS
Perovskite
Carrier dynamics
Polarons
Excitons
Optical properties
Phonons
Photovoltaics
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