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Observation and the...
Observation and theory of the V-O-H2 complex in silicon
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- Markevich, V. P. (författare)
- Institute of Solid State and Semiconductor Physics, Minsk, Belarus
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- Murin, L. I. (författare)
- Institute of Solid State and Semiconductor Physics, Minsk, Belarus
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- Suezawa, M. (författare)
- Institute for Materials Research, Tohoku University, Sendai, Japan
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- Lindström, J. L. (författare)
- Department of Physics, Solid State Physics, University of Lund, Lund, Sweden
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- Coutinho, J. (författare)
- School of Physics, University of Exeter, Exeter, United Kingdom
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- Jones, R. (författare)
- School of Physics, University of Exeter, Exeter, United Kingdom
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- Briddon, P. R. (författare)
- Department of Physics, The University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom
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- Öberg, Sven (författare)
- Luleå tekniska universitet,Matematiska vetenskaper
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(creator_code:org_t)
- 2000
- 2000
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 61:19, s. 12964-12969
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The interaction of hydrogen with radiation-induced defects (RD's) in Czochralski-grown silicon crystals has been studied by infrared-absorption spectroscopy and ab initio modeling. Hydrogen and/or deuterium was introduced into the crystals by indiffusion from H2 (D2) gas at 1200-1300 °C. The samples were subsequently irradiated with fast electrons (E=2-4 MeV) and annealed in the temperature range of 100-600 °C. The centers produced by the irradiation were the same in both the untreated and treated cases, namely the A-center, Ci-Oi complex, and divacancy. A heat treatment of the H-treated samples resulted in the enhanced loss of these centers and the formation of centers containing hydrogen. The disappearance of the A centers in the temperature range of 100-150 °C is correlated with the appearance of three local vibrational modes (LVM's) at 943.5, 2126.4, and 2151.5 cm-1. The isotopic shifts of these lines were obtained from measurements on the samples doped with hydrogen and deuterium. The lines are identified as related to stretching vibrational modes of a complex that consists of one oxygen and two hydrogen atoms sharing a vacancy site (V-O-H2 complex). Ab initio calculations are used to explore the structures and properties of this defect. The origin of other LVM bands, which were observed upon annealing, is discussed.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- Scientific Computing
- Teknisk-vetenskapliga beräkningar
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