Self-Hybridized Polaritonic Emission from Layered Perovskites

被引：25

作者：

Anantharaman, Surendra B. ^{[1
]}

Stevens, Christopher E. ^{[2
,3
]}

Lynch, Jason ^{[1
]}

Song, Baokun ^{[1
]}

Hou, Jin ^{[4
,5
]}

Zhang, Huiqin ^{[1
]}

Jo, Kiyoung ^{[1
]}

Kumar, Pawan ^{[1
]}

Blancon, Jean-Christophe ^{[4
]}

Mohite, Aditya D. ^{[4
,5
]}

Hendrickson, Joshua R. ^{[3
]}

Jariwala, Deep ^{[1
]}

机构：

[1] Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USA

[2] KBR Inc, Beavercreek, OH 45431 USA

[3] Air Force Res Lab, Sensors Directorate, Wright Patterson AFB, OH 45433 USA

[4] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA

[5] Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA

来源：

NANO LETTERS | 2021年 / 21卷 / 14期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

Ruddlesden-Popper perovskites; Hybrid states; Polaritons; Rabi splitting; Boser action;

D O I：

10.1021/acs.nanolett.1c02058

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Light-matter coupling in excitonic materials has been the subject of intense recent investigations due to emergence of new materials. Two-dimensional layered hybrid organic/inorganic perovskites (2D HOIPs) support strongly bound excitons at room temperature 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 HOIP crystals without the necessity of an external cavity. We report the 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 of >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.

引用

页码：6245 / 6252

页数：8