Scalable single-photon sources in atomically thin MoS2

Abstract

Real-world quantum applications, eg. on-chip quantum networks and quantum cryptography, necessitate large scale integrated single-photon sources with nanoscale footprint for modern information technology. While on-demand and high fidelity implantation of atomic scale single-photon sources in conventional 3D materials suffer from uncertainties due to the crystals dimensionality, layered 2D materials can host point-like centers with inherent confinement to a sub-nm plane. However, previous attempts to truly deterministically control spatial position and spectral homogeneity while maintaining the 2D character have not been realized. Here, we demonstrate the on-demand creation and precise positioning of single-photon sources in atomically thin MoS2 with very narrow ensemble broadening and near-unity fabrication yield. Focused ion beam irradiation creates 100s to 1000s of mono-typical atomistic defects with anti-bunched emission lines with sub-10 nm lateral and 0.7 nm axial positioning accuracy. Our results firmly establish 2D materials as a scalable platform for single-photon emitters with unprecedented control of position as well as photophysical properties owing to the all-interfacial nature.

arXiv comment13 pages, 4 figures

References in corpus (22)

• Phonons in single and few-layer MoS2 and WS2
• Large-scale quantum-emitter arrays in atomically thin semiconductors
• Deterministic strain-induced arrays of quantum emitters in a two-dimensional semiconductor
• Tunable and high purity room-temperature single photon emission from atomic defects in hexagonal boron nitride
• Single photon emission from silicon-vacancy centres in CVD-nano-diamonds on iridium
• Diamond Nanophotonics
• Chip-scale nanofabrication of single spins and spin arrays in diamond
• Identifying substitutional oxygen as a prolific point defect in monolayer transition metal dichalcogenides with experiment and theory
• Deterministic coupling of site-controlled quantum emitters in monolayer semiconductors to plasmonic nanocavities
• Engineering shallow spins in diamond with nitrogen delta-doping
• Scalable Focused Ion Beam Creation of Nearly Lifetime-Limited Single Quantum Emitters in Diamond Nanostructures
• Atomistic defect states as quantum emitters in monolayer MoS${}_2$
• Large spin-orbit splitting of deep in-gap defect states of engineered sulfur vacancies in monolayer WS2
• Direct exciton emission from atomically thin transition metal dichalcogenide heterostructures near the lifetime limit
• Vertical distribution of nitrogen-vacancy centers in diamond formed by ion implantation and annealing
• Ultra-bright and efficient single photon generation based on N-V centres in nanodiamonds on a solid immersion lens
• Discrete quantum dot like emitters in monolayer MoSe2: Spatial mapping, Magneto-optics and Charge tuning
• Phonon-assisted emission and absorption of individual color centers in hexagonal boron nitride
• Resonance fluorescence of GaAs quantum dots with near-unity photon indistinguishability
• Coupling of deterministically activated quantum emitters in hexagonal boron nitride to plasmonic surface lattice resonances
• Robust valley polarization of helium ion modified atomically thin MoS${}_2$
• Generation of Ensembles of Individually Resolvable Nitrogen Vacancies Using Nanometer-Scale Apertures in Ultrahigh-Aspect Ratio Planar Implantation Masks

Cited by in corpus (17)

• Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride
• Bright single photon emitters with enhanced quantum efficiency in a two-dimensional semiconductor coupled with dielectric nano-antennas
• Roadmap for Photonics with 2D Materials
• Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride
• Sensing the local magnetic environment through optically active defects in a layered magnetic semiconductor
• Unveiling the Zero-Phonon Line of the Boron Vacancy Center by Cavity Enhanced Emission
• Spin-defect characteristics of single sulfur vacancies in monolayer ${\text{MoS}}_2$
• Magnetic field imaging by hBN quantum sensor nanoarray
• Effects of CVD Growth Parameters on Global and Local Optical Properties of MoS${}_2$ Monolayers
• Tuning the Optical Properties of an MoSe${}_2$ Monolayer Using Nanoscale Plasmonic Antennas
• Optical and dielectric properties of MoO${}_3$ nanosheets for van der Waals heterostructures
• Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride
• Quantum light generation with ultra-high spatial resolution in 2D semiconductors via ultra-low energy electron irradiation
• Scalable transparent conductive thin films with electronically passive interfaces for direct chemical vapor deposition of 2D materials
• Quantum Confined Luminescence in Two dimensions
• Ultra-Sensitive Extinction Measurements of Optically Active Defects in Monolayer MoS${}_2$
• Tunable WS${}_2$ Micro-Dome Open Cavity Single Photon Source