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Dynamic properties ...
Dynamic properties of radiative recombination in p-type d-doped layers in GaAs
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- Zhao, Q.X. (author)
- Physical Electronics and Photonics, Department of Physics, Chalmers University of Technology and University of Göteborg, Sweden
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- Willander, M. (author)
- Physical Electronics and Photonics, Department of Physics, Chalmers University of Technology and University of Göteborg, Sweden
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- Bergman, Peder, 1961- (author)
- Linköpings universitet,Tekniska högskolan,Halvledarmaterial
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- Holtz, Per-Olof, 1951- (author)
- Linköpings universitet,Tekniska högskolan,Halvledarmaterial
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- Lu, W. (author)
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai China
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- Shen, S.C. (author)
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai China
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(creator_code:org_t)
- American Physical Society, 2001
- 2001
- English.
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In: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 63
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We present an optical study of thin Zn-doped GaAs layers embedded in bulk GaAs, grown by metal-organic vapor-phase-epitaxy by means of stationary and time-resolved optical spectroscopy. The concentration of the Zn acceptors was aimed at 2×1020/cm3 in 4-nm-wide doping regions. The intensity of the optical radiative transition (so called the F emission) appearing in photoluminescence spectra was found to be related to holes confined at doping regions. The F emission shows a strong dependence on excitation intensity and temperature. The energy position varies from 1.46 to 1.49 eV as the excitation density changes from about 40 mW/cm2 to 23 W/cm2. The dynamic properties of the F-emission band have been studied by time-resolved spectroscopy. The F emission shows a nonexponential decay character. The decay time of the F emission exhibits a strong dependence on the detection energy within the F-emission band. The decay time becomes longer as the detection energy is redshifted.
Keyword
- NATURAL SCIENCES
- NATURVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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