Universal scaling laws for charge-carrier interactions with quantum confinement in lead-halide perovskites.

ABSTRACT: Lead halide perovskites open great prospects for optoelectronics and a wealth of potential applications in quantum optical and spin-based technologies. Precise knowledge of the fundamental optical and spin properties of charge-carrier complexes at the origin of their luminescence is crucial in view of the development of these applications. On nearly bulk Cesium-Lead-Bromide single perovskite nanocrystals, which are the test bench materials for next-generation devices as well as theoretical modeling, we perform low temperature magneto-optical spectroscopy to reveal their entire band-edge exciton fine structure and charge-complex binding energies. We demonstrate that the ground exciton state is dark and lays several millielectronvolts below the lowest bright exciton sublevels, which settles

SUBMITTER: Tamarat P 

PROVIDER: S-EPMC9842747 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature