Time resolved photoemission spectroscopy of electronic cooling and localization in CH${}_3$NH${}_3$PbI${}_3$ crystals

Zhesheng Chen, Min-i Lee, Zailan Zhang +10

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 photoexcite…