Large-scale quantum-emitter arrays in atomically thin semiconductors

Quantum light emitters have been observed in atomically thin layers of transition metal dichalcogenides. However, they are found at random locations within the host material and usually in low densities, hindering experiments aiming to investigate this new class of emitters. Here, we create deterministic arrays of hundreds of quantum emitters in tungsten diselenide and tungsten disulphide monolayers, emitting across a range of wavelengths in the visible spectrum (610-680 nm and 740-820 nm), with a greater spectral stability than their randomly occurring counterparts. This is achieved by depositing monolayers onto silica substrates nanopatterned with arrays of 150-nm-diameter pillars ranging from 60 to 190 nm…

• NS
  National Science Foundation

  Award: 1231319
• GF
  Graphene Flagship
• EA
  Engineering and Physical Sciences Research Council

  Awards: M013243/1, EP/K017144/1, EP/N010345/1, EP/K01711X/1, EP/M013243/1, EP/M507799/1, EP/K01711X/1, EP/G037221, EP/L016087/1, EP/N010345, EP/K017144/1, NQIT EP/M013243/1, EP/G037221/1, EP/N010345/1, EP/M507799/1, EP/M013243/1
• DO
  Division of Materials Research

  Awards: 1231319, DMR-1231319
• HM
  H2020 Marie Skłodowska-Curie Actions

  Award: 676108