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Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
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Phonon-driven transient bandgap renormalization in perovskite single crystals

Lijie Wang1, Hong Wang1,2, Razan Nughays1

  • 1Advanced Membranes and Porous Materials Centre (AMPM), Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia. omar.abdelsaboor@kaust.edu.sa.

Materials Horizons
|July 11, 2023
PubMed
Summary

Hot phonons significantly impact transient bandgap renormalization in perovskite (MAPbBr3) crystals, affecting optoelectronic device performance. This study reveals a new mechanism influencing bandgap changes on ultrafast timescales.

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