Surface Plasmon Enhanced Strong Exciton-Photon Coupling in Hybrid Inorganic-Organic Perovskite Nanowires.

Shang, Qiuyu; Zhang, Shuai; Liu, Zhen; Chen, Jie; Yang, Pengfei; Li, Chun; Li, Wei; Zhang, Yanfeng; Xiong, Qihua; Liu, Xinfeng; Zhang, Qing

Shang, Qiuyu; Zhang, Shuai; Liu, Zhen; Chen, Jie; Yang, Pengfei; Li, Chun; Li, Wei; Zhang, Yanfeng; Xiong, Qihua; Liu, Xinfeng; Zhang, Qing.

Afiliação

Shang Q; Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China.
Zhang S; Research Center for Wide Gap Semiconductor , Peking University , Beijing 100871 , China.
Liu Z; CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center of Excellence for Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China.
Chen J; Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China.
Yang P; Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China.
Li C; CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center of Excellence for Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China.
Li W; Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China.
Zhang Y; Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China.
Xiong Q; Department of Physics , Tsinghua University , Beijing 100084 , P. R. China.
Liu X; Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China.
Zhang Q; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371.

Nano Lett ; 18(6): 3335-3343, 2018 06 13.

Article em En | MEDLINE | ID: mdl-29722986

ABSTRACT

ABSTRACT

Manipulating strong light-matter interaction in semiconductor microcavities is crucial for developing high-performance exciton polariton devices with great potential in next-generation all-solid state quantum technologies. In this work, we report surface plasmon enhanced strong exciton-photon interaction in CH3NH3PbBr3 perovskite nanowires. Characteristic anticrossing behaviors, indicating a Rabi splitting energy up to â¼564 meV, are observed near exciton resonance in hybrid perovskite nanowire/SiO2/Ag cavity at room temperature. The exciton-photon coupling strength is enhanced by â¼35% on average, which is mainly attributed to surface plasmon induced localized excitation field redistribution. Further, systematic studies on SiO2 thickness and nanowire dimension dependence of exciton-photon interaction are presented. These results provide new avenues to achieve extremely high coupling strengths and push forward the development of electrically pumped and ultralow threshold small lasers.

Palavras-chave

Surface plasmon; microcavity; nanowire; perovskite; polariton; strong light−matter interaction

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