Time-resolved photoemission spectroscopy of electronic cooling and localization in CH 3 NH 3 PbI 3 crystals
Physical Review Materials,
Condensed Matter - Materials Science
We measure the surface of CH$_3$NH$_3$PbI$_3$ single crystals by making use of two photon photoemission spectroscopy. Our method monitors the electronic distribution of photoexcited electrons, explicitly discriminating the initial thermalization from slower dynamical pr...