Electrically-driven single-photon sources based on colloidal quantum dots with near-optimal antibunching at room temperature

Xing Lin, Xingliang Dai, Chaodan Pu, Yunzhou Deng, Yuan Niu, Limin Tong, Wei Fang (), Yizheng Jin () and Xiaogang Peng ()
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Xing Lin: State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
Xingliang Dai: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University
Chaodan Pu: Zhejiang University
Yunzhou Deng: State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University
Yuan Niu: Zhejiang University
Limin Tong: State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
Wei Fang: State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
Yizheng Jin: State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University
Xiaogang Peng: Zhejiang University

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: Abstract Photonic quantum information requires high-purity, easily accessible, and scalable single-photon sources. Here, we report an electrically driven single-photon source based on colloidal quantum dots. Our solution-processed devices consist of isolated CdSe/CdS core/shell quantum dots sparsely buried in an insulating layer that is sandwiched between electron-transport and hole-transport layers. The devices generate single photons with near-optimal antibunching at room temperature, i.e., with a second-order temporal correlation function at zero delay (g (2)(0)) being

Date: 2017
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DOI: 10.1038/s41467-017-01379-6

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