Abstract
Photoluminescence spectroscopy was observed for a set of Al0.5Ga0.5As/AlxGa1-xAs/GaAs0.643Sb0.357/Alx Ga1-xAs/Al0.5Ga0.5As 5-layer quantum wells with different Al mole fraction x (different conduction band barrier heights Ex= Ec(AlxGa1-xAs) - Ec(GaAs)). The theoretical calculation and the data fitting for the experimental data show the conduction band offset of GaAs0.643Sb0.357/GaAs heterojunction is almost flat (weak type I), ΔEc = Ec(GaAs) - Ec(GaAsSb) = 13 ± 13 meV and the bandgap bowing parameter for strained GaAsSb is -1.58 ± 0.01 eV.
| Original language | English (US) |
|---|---|
| Title of host publication | 2003 30th International Symposium on Compound Semiconductors, ISCS 2003 |
| Subtitle of host publication | Post-Conference Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 66-71 |
| Number of pages | 6 |
| ISBN (Electronic) | 0780386140 |
| DOIs | |
| State | Published - 2003 |
| Externally published | Yes |
| Event | 30th International Symposium on Compound Semiconductors, ISCS 2003 - San Diego, United States Duration: Aug 25 2003 → Aug 27 2003 |
Publication series
| Name | IEEE International Symposium on Compound Semiconductors, Proceedings |
|---|---|
| Volume | 2003-August |
Conference
| Conference | 30th International Symposium on Compound Semiconductors, ISCS 2003 |
|---|---|
| Country/Territory | United States |
| City | San Diego |
| Period | 8/25/03 → 8/27/03 |
Bibliographical note
Publisher Copyright:© 2004 IEEE.
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