Cooling dynamics of electrons in MAPbBr3 probed in the deep-UV
1 Laboratoire de Spectroscopie Ultrarapide, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
2 Department of Photonics, National Cheng Kung University, Tainan, Taiwan
* Corresponding author: firstname.lastname@example.org
Published online: 16 April 2019
Transient absorption in the Visible and in the deep-UV is performed on MAPbBr3 thin films with 3.1 eV pump excitation. The UV probe can access higher order transitions in the material exploring different high-symmetry points of the Brillouin zone. Uncorrelated electron-hole pairs are generated within the instrument response function of 150 fs. The photobleaching at 3.3 eV shows that electron cooling happens in ~ 1 ps.
© 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.