@inproceedings{fdcb8d0336eb4d148009004900ca2905,
title = "Effects of defects in GaAs/AlGaAs quantum wells",
abstract = "High Resolution transmission electron microscopy (HRTEM) and electroreflectance (ER) were used to explain the role of point defects in the molecular beam epitaxy (MBE) grown PIN structure containing five coupled (50 angstroms/28 angstroms) GaAs/AlxGa1-xAs quantum wells with x = 0.25. The ER data were taken at 300 K and 77 K for energies from 1.4 to 2.1 eV from which sub-band energy transitions were determined. Data at 300 K showed three transitions whereas four were readily resolved at 77 K. HRTEM data determined the uniformity of both the wells and barriers to be within ±2 angstroms, which neither caused appreciable broadening nor a decrease in the transition probability. However, the data at different temperatures suggest that point defects may be responsible for the decrease in the transition probability.",
author = "Russo, {O. L.} and V. Rehn and Nee, {T. W.} and Dumas, {K. A.}",
year = "1994",
month = jan,
day = "1",
language = "English (US)",
isbn = "1558992243",
series = "Materials Research Society Symposium Proceedings",
publisher = "Publ by Materials Research Society",
pages = "43--48",
booktitle = "Materials Research Society Symposium Proceedings",
note = "Proceedings of the Symposium on Defects in Advanced Semiconductors: Physics and Applications ; Conference date: 29-11-1993 Through 01-12-1993",
}