Abstract
The band-gap energy and band-gap bowing parameter of the wurtzite AlGaN alloys are investigated numerically with the CASTEP simulation program. The simulation results suggest that the unstrained band-gap bowing parameter of the wurtzite AlGaN alloys is b = 0.353 ± 0.024 eV. The simulation results also show that the width of the AlxGa1-xN top valence band at the Γ point decreases when the aluminum composition increases and has a value of 7.331 eV for the GaN (x = 0) and 6.132 eV for the AlN (x = 1).
Original language | English |
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Pages (from-to) | 73-74 |
Number of pages | 2 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 41 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2002 Jan 1 |
All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)