| DOI | Resolve DOI: https://doi.org/10.1016/0038-1098(94)90206-2 |
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| Author | Search for: Steiner, T. W.; Search for: Lenchyshyn, L. C.; Search for: Thewalt, M. L. W.; Search for: Noël, J.-P.1; Search for: Rowell, N. L.2; Search for: Houghton, D. C.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
- National Research Council of Canada. NRC Institute for National Measurement Standards
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| Format | Text, Article |
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| Abstract | We have observed visible photoluminescence, at photon energies nearly twice those of the usual near-infrared excitonic emissions, from thin Si1-xGex quantum wells at liquid He temperatures. This confirms that a significant biexciton population is present in such samples under excitation conditions normally used for near-infrared photo-luminescence measurements. The intensity of the visible luminescence increases linearly with excitation density, consistent with the biexcitons being localized by fluctuations in alloy content. The biexciton lifetime is observed to vary with the Si1-xGex quantum well width indicating an enhancement of the overlap of the particle wave functions by the quantum confinement. |
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| Publication date | 1994 |
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| In | |
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| Language | English |
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| NRC number | NRC-INMS-1163 |
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| NPARC number | 8896884 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 83003cf9-b6ff-4c9e-b799-0463862f6640 |
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| Record created | 2009-04-22 |
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| Record modified | 2020-04-27 |
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