Spectroscopy of excited states inAs-InP single quantum wells grown by chemical-beam epitaxy
- 15 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (12), 9023-9026
- https://doi.org/10.1103/physrevb.34.9023
Abstract
Photoluminescence excitation (PLE) spectra are reported for six single quantum wells with thicknesses between 130 and 23 Å grown on the same wafer by chemical-beam epitaxy. The very strong, narrow line emission from these high-quality quantum wells enabled us to perform PLE with a lamp-monochromator combination as the excitation source. All of the observed excitonic absorption peaks are assigned. Good fits to the spectra can be made with band offsets of and and masses , , and . Energy-dependent corrections for due to conduction-band nonparabolicities are essential for these fits and yield for the correction term in the energy dispersion.
Keywords
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