GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research  (1)
  • American Institute of Physics (AIP)  (1)
  • 1
    facet.materialart.
    Unknown
    Formation of size-controlled and luminescent Si nanocrystals from SiOxNy/Si3N4 hetero-superlattices (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-05-05
    Description: Silicon nanocrystals formed in the annealed SiN x /Si 3 N 4 superlattices are attractive for research due to the smaller band offsets of Si 3 N 4 matrix to Si in comparison with commonly used SiO x /SiO 2 superlattices. However, the annealed SiN x /Si 3 N 4 structures contain an increased number of nanocrystal interface defects, which completely suppress nanocrystal emission spectrum. In this work, we study a novel SiO x N y /Si 3 N 4 hetero multilayer combination, which compromises the major issues of SiO x /SiO 2 and SiN x /Si 3 N 4 superlattices. The annealed SiO x N y /Si 3 N 4 superlattices are investigated by TEM, demonstrating a precise sublayer thicknesses control. The PL spectra of the annealed SiO x N y /Si 3 N 4 superlattices are centered at 845–950 nm with an expected PL peak shift for silicon nanocrystals of different sizes albeit the PL intensity is drastically reduced as compared to SiO 2 separation barriers. The comparison of PL spectra of annealed SiO x N y /Si 3 N 4 superlattice with those of SiO x N y /SiO 2 superlattice enables the analysis of the interface quality of silicon nanocrystals. Using the literature data, the number of the interface defects and their distribution on the nanocrystal facets are estimated. Finally, it is shown that the increase of the Si 3 N 4 barrier thickness leads to the increased energy transfer from the Si nanocrystals into the Si 3 N 4 matrix, which explains an additional drop of the nanocrystal PL intensity.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics (AIP)
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Tectonic of the Laptev Sea Region in North-Eastern Siberia (2000)
    Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research
    In:  EPIC3Polarforschung, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research, 68, pp. 51-58, ISSN: 0032-2490
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Polarforschung" , peerRev
    Format: application/pdf
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...