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Room temperature continuous-wave excited biexciton emission in perovskite nanoplatelets via plasmonic nonlinear fano resonance
Chen,Jie1,2,3; Zhang,Qing3,4; Shi,Jia1,2; Zhang,Shuai1,2; Du,Wenna1,5; Mi,Yang1; Shang,Qiuyu3,4; Liu,Pengchong1,2; Sui,Xinyu1,2; Wu,Xianxin1,2; Wang,Rui1; Peng,Bo6; Zhong,Haizheng7; Xing,Guichuan8; Qiu,Xiaohui1,2; Sum,Tze Chien9; Liu,Xinfeng1,2
Source PublicationCommunications Physics

Biexcitons are a manifestation of many-body excitonic interactions, which are crucial for quantum information and computation in the construction of coherent combinations of quantum states. However, due to their small binding energy and low transition efficiency, most biexcitons in conventional semiconductors exist either at cryogenic temperatures or under femto-second pulse laser excitation. Herein, we demonstrated strong biexciton emissions from CsPbBr nanoplatelets with continuous-wave excitation at room temperature by coupling them with a plasmonic nanogap. The exciton occupancy required to generate biexciton was reduced ~10 times in the Ag nanowire–Ag film nanogaps. The extremely large enhancement of biexciton emissions was driven by nonlinear Fano resonance between biexcitons and surface plasmon cavity modes. These results provide new pathways to develop high efficiency non-blinking single photon sources of biexciton (with spectral filter for biexciton), entangled light sources, and lasers based on biexciton states.

URLView the original
Indexed BySCIE
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000474914100001
Scopus ID2-s2.0-85071192221
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Cited Times [WOS]:26   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorZhang,Qing; Sum,Tze Chien; Liu,Xinfeng
Affiliation1.CAS Key Laboratory of Standardization and Measurement for Nanotechnology,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing,100190,China
2.University of Chinese Academy of Sciences,Beijing,100049,China
3.Department of Materials Science and Engineering,College of Engineering,Peking University,Beijing,100871,China
4.Research Center for Wide Band Semiconductor,Peking University,Beijing,100871,China
5.Key Laboratory of Semiconductor Materials Science,Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices,Institute of Semiconductors,Chinese Academy of Sciences,Beijing,100083,China
6.National Engineering Research Center of Electromagnetic Radiation Control Materials and State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu,610054,China
7.Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems,School of Materials Science & Engineering,Beijing Institute of Technology,Beijing,100081,China
8.Institute of Applied Physics and Materials Engineering,University of Macau,999078,Macao
9.School of Physical & Mathematical Sciences,Nanyang Technological University,Singapore,21 Nanyang Link,637371,Singapore
Recommended Citation
GB/T 7714
Chen,Jie,Zhang,Qing,Shi,Jia,et al. Room temperature continuous-wave excited biexciton emission in perovskite nanoplatelets via plasmonic nonlinear fano resonance[J]. Communications Physics,2019,2(1).
APA Chen,Jie,Zhang,Qing,Shi,Jia,Zhang,Shuai,Du,Wenna,Mi,Yang,Shang,Qiuyu,Liu,Pengchong,Sui,Xinyu,Wu,Xianxin,Wang,Rui,Peng,Bo,Zhong,Haizheng,Xing,Guichuan,Qiu,Xiaohui,Sum,Tze Chien,&Liu,Xinfeng.(2019).Room temperature continuous-wave excited biexciton emission in perovskite nanoplatelets via plasmonic nonlinear fano resonance.Communications Physics,2(1).
MLA Chen,Jie,et al."Room temperature continuous-wave excited biexciton emission in perovskite nanoplatelets via plasmonic nonlinear fano resonance".Communications Physics 2.1(2019).
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