Phonon-pump electronic-probe study of methylammonium lead iodide reveals electronically decoupled organic and inorganic sublattices

25 Oct 2018 Guo Peijun Mannodi-Kanakkithodi Arun Gong Jue Xia Yi Stoumpos Constantinos C. Cao Duyen H. Diroll Benjamin T. Ketterson John B. Wiederrecht Gary P. Xu Tao Chan Maria K. Y. Kanatzidis Mercouri G. Schaller Richard D.

Organic-inorganic hybrid perovskites such as methylammonium lead iodide (CH3NH3PbI3) are game-changing semiconductors for solar cells and light-emitting devices owing to their exceptionally long carrier lifetime and diffusion length. Determining whether the large dipole moment of the organic cation and dynamic disorder benefit the optoelectronic properties of CH3NH3PbI3 has been an outstanding challenge... (read more)

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