https://doi.org/10.1051/epjconf/201920504012
Ultrafast carrier interactions in metal-halide perovskites probed with two-dimensional electronic spectroscopy
1 Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, UK
2 IFN-CNR, Dipartimento di Fisica, Piazza L. da Vinci 32, 20133 Milano, Italy
3 Kyoto Institute of Technology, Department of Chemistry and Materials Technology, Kyoto, Japan
* Corresponding author: francovalduga@gmail.com
Published online: 16 April 2019
We use 2D electronic spectroscopy with sub-10-fs resolution to probe carrier-carrier scattering in perovskites. We report excitation-density dependent thermalization times below 100-fs. Strong coupling with excitonic states further reveals sub-bandgap states with low oscillator strength.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
