Abstract

Electrically driven molecular light emitters are considered to be one of the promising candidates as single-photon sources. However, it is yet to be demonstrated that electrically driven single-photon emission can indeed be generated from an isolated single molecule notwithstanding fluorescence quenching and technical challenges. Here, we report such electrically driven single-photon emission from a well-defined single molecule located inside a precisely controlled nanocavity in a scanning tunneling microscope. The effective quenching suppression and nanocavity plasmonic enhancement allow us to achieve intense and stable single-molecule electroluminescence. Second-order photon correlation measurements reveal an evident photon antibunching dip with the single-photon purity down to g(2)(0) = 0.09, unambiguously confirming the single-photon emission nature of the single-molecule electroluminescence. Furthermore, we demonstrate an ultrahigh-density array of identical single-photon emitters.

Details

Title
Electrically driven single-photon emission from an isolated single molecule
Author
Zhang, Li 1 ; Yun-Jie, Yu 1 ; Liu-Guo, Chen 1 ; Luo, Yang 1 ; Yang, Ben 1 ; Fan-Fang, Kong 1 ; Chen, Gong 1 ; Zhang, Yang 1 ; Zhang, Qiang 1 ; Luo, Yi 1 ; Jin-Long, Yang 1 ; Zhen-Chao, Dong 1 ; Hou, J G 1 

1  Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui, China 
Pages
1-7
Publication year
2017
Publication date
Sep 2017
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41467-017-00681-7
ProQuest document ID
1940179064
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.