Exciton-Polariton Properties in Planar Microcavity of Millimeter-Sized Two-Dimensional Perovskite Sheet

In this work, the self-organized two-dimensional (2D) perovskite crystal sheet was synthesized for exciton-polariton studies. The layered 2D perovskite sheets naturally form Fabry–Pérot (F–P) optical cavities and exhibit evident cavity polariton modes. In the region of F–P cavity polariton modes, a...

Full description

Saved in:
Bibliographic Details
Published inACS applied materials & interfaces Vol. 12; no. 4; pp. 5081 - 5089
Main Authors Zhang, Xiaoli, Shi, Huafeng, Dai, Haitao, Zhang, Xinhai, Sun, Xiao Wei, Zhang, Zhaoyu
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 29.01.2020
Subjects
microcavity
strong coupling
oscillation modes
exciton-polariton
2D perovskite
Online AccessGet full text

Cover

More Information
Summary:In this work, the self-organized two-dimensional (2D) perovskite crystal sheet was synthesized for exciton-polariton studies. The layered 2D perovskite sheets naturally form Fabry–Pérot (F–P) optical cavities and exhibit evident cavity polariton modes. In the region of F–P cavity polariton modes, an exciton-polariton is formed by the superposition of strongly coupled exciton and photon states and the decreased spacing between two adjacent oscillation modes can be well explained by the formation of exciton polarities. Rabi splitting energy (Ω) evaluated from the energy–wavevector (E–k) dispersion relation of exciton–polariton coupling was about 259 ± 10 meV. For edge emissions of the laminated structure, the thickness-dependent quantum well exerts great influence on the band-gap absorption and emission. This work studies exciton-polariton properties in layered 2D perovskite sheets, making it possible application for polariton devices in the strong light–matter interaction region.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.9b19968