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2. Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite

Author

Myeongkee Park, Amanda J. Neukirch, Sebastian E. Reyes-Lillo, Minliang Lai, Scott R. Ellis, Daniel Dietze, Jeffrey B. Neaton, Peidong Yang, Sergei Tretiak, and Richard A. Mathies

Subjects
Science
Abstract

Elucidating electron-phonon coupling in hybrid organic-inorganic perovskites may help us to understand the high photovoltaic efficiency. Here, the authors observe low-frequency Raman modes and related nuclear displacements of the Pb–I framework, indicating how these vibrational motions lead to polaron formation in perovskites.

Published
2018
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