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Title: Single photon emission from ZnO nanoparticles

Room temperature single photon emitters are very important resources for photonics and emerging quantum technologies. In this work, we study single photon emission from defect centers in 20 nm zinc oxide (ZnO) nanoparticles. The emitters exhibit bright broadband fluorescence in the red spectral range centered at 640 nm with polarized excitation and emission. The studied emitters showed continuous blinking; however, bleaching can be suppressed using a polymethyl methacrylate coating. Furthermore, hydrogen termination increased the density of single photon emitters. Our results will contribute to the identification of quantum systems in ZnO.
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. School of Physics and Advanced Materials, University of Technology Sydney, Ultimo, New South Wales 2007 (Australia)
  2. Centre for Quantum Computation and Communication Technology, School of Physics, University of Melbourne, Parkville, Victoria 3010 (Australia)
  3. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Melbourne, Victoria 3000 (Australia)
Publication Date:
OSTI Identifier:
22303882
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 26; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; BLEACHING; DEFECTS; DENSITY; EXCITATION; FLUORESCENCE; HYDROGEN; NANOPARTICLES; PHOTONS; RESOURCES; TEMPERATURE RANGE 0273-0400 K; ZINC OXIDES