Table 3 The band gap (eV) for (GaAs)m/(AlAs)n (m, n = 1 to 5) SLs obtained from DFT with scissor correction.
| Â | (GaAs)m | |||||
|---|---|---|---|---|---|---|
m | 1 | 2 | 3 | 4 | 5 | |
n | ||||||
(AlAs)n | 1 | 2.04 (1.16a, 2.07b) | 1.81 | 1.71 | 1.64 | 1.6 |
2 | 2.15 | 1.98 (1.09a) | 1.84 | 1.75 | 1.69 | |
3 | 2.14 | 2.02 | 1.9 (1.02a) | 1.81 | 1.74 | |
4 | 2.13 | 2.01 | 1.94 | 1.84 | 1.76 | |
5 | 2.13 | 2 | 1.93 | 1.84 | 1.76 | |