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Träfflista för sökning "WFRF:(Wasilewski ZR) "

Search: WFRF:(Wasilewski ZR)

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1.
  • McCaffrey, JP, et al. (author)
  • Determination of the size, shape, and composition of indium-flushed self-assembled quantum dots by transmission electron microscopy
  • 2000
  • In: Journal of Applied Physics. - 0021-8979 .- 1089-7550. ; 88:5, s. 2272-2277
  • Journal article (peer-reviewed)abstract
    • Single and multiple layers of self-assembled InAs quantum dots (QDs) produced by the indium-flush technique have been studied by transmission electron microscopy (TEM) in an effort to develop techniques to reproducibly grow QDs of uniform size and shape. To monitor the changes in QD dimensions, plan-view samples of capped single layers were studied as well as cross-sectional samples of QDs in multiple layers and stacks. The changes in the observed round- and square-shaped QD images under various plan-view TEM imaging conditions, as well as the contrast reversal in the center of QD images viewed in cross-section are modeled using the many-beam Bloch-wave approach, including strain. The sizes and shapes of the QDs are determined through the interpretation of the observed (primarily strain) contrast in plan-view and the observed (primarily atomic number) contrast in cross-sectional TEM. (C) 2000 American Institute of Physics. [S0021-8979(00)03217-5].
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2.
  • McCaffrey, JP, et al. (author)
  • Size and shape engineering of vertically-stacked InAs quantum dots
  • 1999
  • In: Institute of Physics Conference Series. - 0951-3248 .- 2154-6630. ; :164, s. 107-110
  • Journal article (peer-reviewed)abstract
    • Spontaneous formation of nanostructures during epitaxial growth is one of the most successful techniques for in situ fabrication of quantum dots (QDs). We describe new size and shape engineering procedures for the growth of layers of stacked QDs, resulting in a significant narrowing of the size and shape distribution. Transmission electron microscopy (TEM) and photoluminescence (PL) indicate that the main effects of this size and shape engineering are to convert the quantum dots into a population of quantum disks with highly uniform height and diameter.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Madsen, LD (2)
McCaffrey, JP (2)
Robertson, MD (2)
Fafard, S (2)
Wasilewski, ZR (2)
Griswold, EM (1)
University
Linköping University (2)
Language
English (2)

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