Coherent spin dynamics of electrons and holes in CsPbBr₃ perovskite crystals.

ABSTRACT: The lead halide perovskites demonstrate huge potential for optoelectronic applications, high energy radiation detectors, light emitting devices and solar energy harvesting. Those materials exhibit strong spin-orbit coupling enabling efficient optical orientation of carrier spins in perovskite-based devices with performance controlled by a magnetic field. Here we show that elaborated time-resolved spectroscopy involving strong magnetic fields can be successfully used for perovskites. We perform a comprehensive study of high-quality lead halide perovskite CsPbBr₃ crystals by measuring the exciton and charge carrier g-factors, spin relaxation times and hyperfine interaction of carrier and nuclear spins by means of coherent spin dynamics. Owing to their 'inverted' band structure, pe

SUBMITTER: Belykh VV 

PROVIDER: S-EPMC6368575 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature