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Self-Hybridized Polaritonic Emission from Layered Perovskites
- Source :
- Nano Letters 2021
- Publication Year :
- 2021
-
Abstract
- Light-matter coupling in excitonic materials has been the subject of intense investigation due to emergence of new excitonic materials. Two-dimensional layered hybrid organic/inorganic perovskites (2D HOIPs) support strongly bound excitons at room-temperatures with some of the highest oscillator strengths and electric loss tangents among the known excitonic materials. Here, we report strong light-matter coupling in Ruddlesden-Popper phase 2D-HOIPs crystals without the necessity of an external cavity. We report concurrent occurrence of multiple-orders of hybrid light-matter states via both reflectance and luminescence spectroscopy in thick (> 100 nm) crystals and near-unity absorption in thin (< 20 nm) crystals. We observe resonances with quality factors > 250 in hybridized exciton-polaritons and identify a linear correlation between exciton-polariton mode splitting and extinction coefficient of the various 2D-HOIPs. Our work opens the door to studying polariton dynamics in self-hybridized and open cavity systems with broad applications in optoelectronics and photochemistry.
Details
- Database :
- arXiv
- Journal :
- Nano Letters 2021
- Publication Type :
- Report
- Accession number :
- edsarx.2105.06465
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1021/acs.nanolett.1c02058