Properties of (Al,Ga)As/GaAs heterostructures grown by molecular beam epitaxy with growth interruption
β Scribed by C.W. Tu; R.C. Miller; B.A. Wilson; P.M. Petroff; T.D. Harris; R.F. Kopf; S.K. Sputz; M.G. Lamont
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 423 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0022-0248
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Low-temperature photoluminescence measurements were carried out to assess the changes in the properties of strained GaAs/InGaAs/GaAs multi-quantum-wells grown by molecular beam epitaxy at different substrate (well) temperatures with and without growth interruption at the heterointerfaces. Sharp exci
We have measured the photoluminescence (PL) and PL excitation (PLE) of AlGaAs/GaAs single quantum wells with growth-interrupted heterointerfaces. PLE shows the small Stokes shifts of less than 1 meV indicating the extremely flat heterointerfaces without microroughness. Photoluminescence spectra show