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Photon mapping of quantum dots using a scanning tunneling microscope

In English

Författare

Summary, in English

Scanning tunneling microscopy (STM) and scanning tunneling luminescence (STL) have been used to investigate the geometric and optical properties of individual self-assembled InP quantum dots overgrown with a thin layer of GaInP. STL spectra and monochromatic photon maps were used to correlate the surface topography with the optical properties of single quantum dots. We find a spatial resolution of about 10 nm in the photon maps. Theoretical emission spectra were calculated by six-band k.p theory using a realistic shape of the dot as well as of the cap layer. The calculated emission spectrum of a single dot is in good agreement with the experimental findings. (C) 2002 American Institute of Physics.

Publiceringsår

2002

Språk

Engelska

Sidor

4443-4445

Publikation/Tidskrift/Serie

Applied Physics Letters

Volym

81

Issue

23

Dokumenttyp

Artikel i tidskrift

Förlag

American Institute of Physics (AIP)

Ämne

  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0003-6951