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Evidence and implications for exciton dissociation in lead halide perovskites

MPG-Autoren
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Tiwari,  V.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Department of Chemistry, Universität Hamburg;

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Duan,  H.-G.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
I. Institut für Theoretische Physik, Universität Hamburg;
The Hamburg Center for Ultrafast Imaging;

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Jha,  A.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Miller,  R. J. D.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
The Hamburg Center for Ultrafast Imaging;
The Departments of Chemistry and Physics, University of Toronto;

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Zitation

Tiwari, V., Duan, H.-G., Jha, A., Nayak, P. K., Thorwart, M., Snaith, H. J., et al. (2019). Evidence and implications for exciton dissociation in lead halide perovskites. EPJ Web of Conferences, 205: 06018. doi:10.1051/epjconf/201920506018.


Zitierlink: https://hdl.handle.net/21.11116/0000-0006-FF20-7
Zusammenfassung
We have employed ultrafast transient-grating and two- dimensional electronic spectroscopy to probe dynamics of photo-excited CH3NH3PbI3 thin films with 16-fs temporal resolution. We distinctly capture the 30-fs decay of excitons, weakly coupled to the phonons.