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Search: WFRF:(Tanderup K.)

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  • Nielsen, B. Bach, et al. (author)
  • Local vibrational modes of weakly bound O-H complexes in SI
  • 1997
  • In: Defects in semiconductors. - : Trans Tech Publications Inc.. ; , s. 391-398
  • Conference paper (peer-reviewed)abstract
    • Local vibrational modes of two oxygen-hydrogen complexes have been identified with infrared absorption spectroscopy. Samples of intrinsic silicon and samples doped with 16O or 18O isotopes were implanted with protons and deuterons at ∼20 K. After the implantation, infrared absorbance spectra were measured at 8 K on unannealed samples. An oxygen mode at 1077 cm-1 and a hydrogen mode at 1879 cm-1, which originate from the same defect OHI were observed in the as-implanted samples. Heat-treatment at 200 K produced a new center OHII with modes at 1028 and 1830 cm-1. OHI anneals out at ∼130 K while OHII is stable up to ∼240 K. OHI and OHII are tentatively identified with two complexes of interstitial oxygen and bond-centred hydrogen. Ab initio theory was applied to calculate the structure and local modes of three such complexes. The results qualitatively support our tentative assignments.
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Type of publication
conference paper (1)
Type of content
peer-reviewed (1)
Author/Editor
Jones, R. (1)
Öberg, Sven (1)
Hourahine, B. (1)
Budde, M. (1)
Nielsen, B. Bach (1)
Lindström, J. L. (1)
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Briddon, P (1)
Tanderup, K. (1)
Bonde-Nielsen, K. (1)
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University
Luleå University of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
1997 (1)

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