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

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

Format: Article
Diterbitkan: Nature Portfolio 2018-06-01

Deskripsi

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.