Single quantum emitters in monolayer semiconductors.

@article{He2015SingleQE,
  title={Single quantum emitters in monolayer semiconductors.},
  author={Yu-Ming He and Genevieve Clark and John R Schaibley and Yu He and Ming-Cheng Chen and Yu-Jia Wei and Xing Ding and Qiang Zhang and Wang Yao and Xiaodong Xu and Chao-Yang Lu and Jian-Wei Pan},
  journal={Nature nanotechnology},
  year={2015},
  volume={10 6},
  pages={
          497-502
        }
}
  • Yu-Ming He, Genevieve Clark, +9 authors Jian-Wei Pan
  • Published 2015
  • Physics, Medicine
  • Nature nanotechnology
Single quantum emitters (SQEs) are at the heart of quantum optics and photonic quantum-information technologies. To date, all the demonstrated solid-state single-photon sources are confined to one-dimensional (1D; ref. 3) or 3D materials. Here, we report a new class of SQEs based on excitons that are spatially localized by defects in 2D tungsten-diselenide (WSe2) monolayers. The optical emission from these SQEs shows narrow linewidths of ∼130 μeV, about two orders of magnitude smaller than… Expand
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TLDR
The observation of zero-dimensional anharmonic quantum emitters in monolayer tungsten diselenide with an energy that is 20-100 meV lower than that of two-dimensional excitons shows that the quantum dots have singlet ground states and an anisotropic confinement that is most probably induced by impurities or defects. Expand
Voltage-controlled quantum light from an atomically thin semiconductor.
TLDR
The possibility of leveraging the atomically thin semiconductor tungsten diselenide (WSe2) as a host for quantum dot-like defects is demonstrated and it is reported that this previously unexplored solid-state quantum emitter in WSe2 generates single photons with emission properties that can be controlled via the application of external d.c. electric and magnetic fields. Expand
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