These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
Interlayer_ChemRxiv.pdf (1.78 MB)
Efficient Interlayer Exciton Transport in Two-Dimensional Metal-Halide Perovskites.
Preprints are manuscripts made publicly available before they have been submitted for formal peer review and publication. They might contain new research findings or data. Preprints can be a draft or final version of an author's research but must not have been accepted for publication at the time of submission.
submitted on 09.10.2020 and posted on 12.10.2020by Alvaro J Magdaleno, Michael Seitz, Michel Frising, Ana Herranz de la Cruz, Antonio I. Fernández-Domínguez, Ferry Prins
We present transient microscopy measurements of interlayer energy transport in (PEA)2PbI4 perovskite. We find efficient interlayer exciton transport (0.06 cm2/s), which translates into a diffusion length that exceeds 100 nm and a sub-ps timescale for energy transfer. While still slower than in-plane exciton transport (0.2 cm2/s), our results show that excitonic energy transport is considerably less anisotropic than charge-carrier transport for 2D perovskites.