Polaron-Enhanced Polariton Nonlinearity in Lead Halide Perovskites

被引:14
|
作者
Masharin, Mikhail A. [1 ]
Shahnazaryan, Vanik A. [1 ]
Benimetskiy, Fedor A. [1 ]
Krizhanovskii, Dmitry N. [3 ]
Shelykh, Ivan A. [1 ,5 ]
Iorsh, Ivan V. [1 ,6 ]
Makarov, Sergey V. [1 ,4 ]
Samusev, Anton K. [1 ,2 ]
机构
[1] ITMO Univ, Sch Phys & Engn, St Petersburg 197101, Russia
[2] Tech Univ t Dortmund, Experimentelle Phys 2, D-44227 Dortmund, Germany
[3] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, England
[4] Harbin Engn Univ, Qingdao Innovat & Dev Ctr, Qingdao 266000, Shandong, Peoples R China
[5] Univ Iceland, Sci Inst, IS-107 Reykjavik, Iceland
[6] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
基金
俄罗斯科学基金会;
关键词
exciton-polaritons; polariton nonlinearity; polarons; planar cavity; nanoimprint; perovskites; HYBRID PEROVSKITE; EXCITONS; CARRIERS;
D O I
10.1021/acs.nanolett.2c03524
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Exciton-polaritons offer a versatile platform for realization of all-optical integrated logic gates due to the strong effective optical nonlinearity resulting from the exciton-exciton interactions. In most of the current excitonic materials there exists a direct connection between the exciton robustness to thermal fluctuations and the strength of the exciton-exciton interaction, making materials with the highest levels of exciton nonlinearity applicable at cryogenic temperatures only. Here, we show that strong polaronic effects, characteristic for perovskite materials, allow overcoming this limitation. Namely, we demonstrate a record-high value of the nonlinear optical response in the nanostructured organic-inorganic halide perovskite MAPbI3, experimentally detected as a 19.7 meV blueshift of the polariton branch under femtosecond laser irradiation. This is substantially higher than characteristic values for the samples based on conventional semiconductors and monolayers of transition-metal dichalcogenides. The observed strong polaron-enhanced nonlinearity exists for both tetragonal and orthorhombic phases of MAPbI3 and remains stable at elevated temperatures.
引用
收藏
页码:9092 / 9099
页数:8
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