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arXiv · 2105.06465

Self-Hybridized Polaritonic Emission from Layered Perovskites

Surendra B. Anantharaman·Christopher E. Stevens·Jason Lynch·Baokun Song·Jin Hou·Huiqin Zhang·Kiyoung Jo·Pawan Kumar·Jean-Christophe Blancon·Aditya D. Mohite·Joshua R. Hendrickson·Deep Jariwala
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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.

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physics.opticscond-mat.mes-hallcond-mat.mtrl-scicond-mat.otherphysics.app-ph

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BibTeXRIS

Surendra B. Anantharaman, Christopher E. Stevens, Jason Lynch, Baokun Song, Jin Hou, Huiqin Zhang, Kiyoung Jo, Pawan Kumar, Jean-Christophe Blancon, Aditya D. Mohite, Joshua R. Hendrickson, Deep Jariwala. 2021-05-13. Self-Hybridized Polaritonic Emission from Layered Perovskites. https://doi.org/10.1021/acs.nanolett.1c02058

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