Large array of single, site-controlled InAs quantum dots fabricated by UV-nanoimprint lithography and molecular beam epitaxy

Link:
Autor/in:
Erscheinungsjahr:
2012
Medientyp:
Text
Schlagworte:
  • Quantum dots
  • Semiconductor quantum dots
  • Single-photon source
  • Semiconductor Quantum Dots
  • Semiconductor Quantum Wells
  • Gallium Arsenide
  • Quantum dots
  • Semiconductor quantum dots
  • Single-photon source
  • Semiconductor Quantum Dots
  • Semiconductor Quantum Wells
  • Gallium Arsenide
Beschreibung:
  • We present the growth of single, site-controlled InAs quantum dots on GaAs templates using UV-nanoimprint lithography and molecular beam epitaxy. A large quantum dot array with a period of 1.5 µm was achieved. Single quantum dots were studied by steady-state and time-resolved micro-photoluminescence experiments. We obtained single exciton emission with a linewidth of 45 µeV. In time-resolved experiments, we observed decay times of about 670 ps. Our results underline the potential of nanoimprint lithography and molecular beam epitaxy to create large-scale, single quantum dot arrays.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/b4bfc63e-187d-4d59-8914-481af089f780