Table 2. Predicted carrier mobility.
Carrier type | NL | mx*/m0 | my*/m0 | E1x | E1y | Cx_2D | Cy_2D | μx_2D | μy_2D |
---|---|---|---|---|---|---|---|---|---|
G–X | G–Y | (eV) | (J m−2) | (103 cm2 V−1 s−1) | |||||
e | 1 | 0.17 | 1.12 | 2.72±0.02 | 7.11±0.02 | 28.94 | 101.60 | 1.10–1.14 | ~0.08 |
2 | 0.18 | 1.13 | 5.02±0.02 | 7.35±0.16 | 57.48 | 194.62 | ~0.60 | 0.14–0.16 | |
3 | 0.16 | 1.15 | 5.85±0.09 | 7.63±0.18 | 85.86 | 287.20 | 0.76–0.80 | 0.20–0.22 | |
4 | 0.16 | 1.16 | 5.92±0.18 | 7.58±0.13 | 114.66 | 379.58 | 0.96–1.08 | 0.26–0.30 | |
5 | 0.15 | 1.18 | 5.79±0.22 | 7.35±0.26 | 146.58 | 479.82 | 1.36–1.58 | 0.36–0.40 | |
h | 1 | 0.15 | 6.35 | 2.50±0.06 | 0.15±0.03 | 28.94 | 101.60 | 0.64–0.70 | 10–26 |
2 | 0.15 | 1.81 | 2.45±0.05 | 1.63±0.16 | 57.48 | 194.62 | 2.6–2.8 | 1.3–2.2 | |
3 | 0.15 | 1.12 | 2.49±0.12 | 2.24±0.18 | 85.86 | 287.20 | 4.4–5.2 | 2.2–3.2 | |
4 | 0.14 | 0.97 | 3.16±0.12 | 2.79±0.13 | 114.66 | 379.58 | 4.4–5.2 | 2.6–3.2 | |
5 | 0.14 | 0.89 | 3.40±0.25 | 2.97±0.18 | 146.58 | 479.82 | 4.8–6.4 | 3.0–4.6 |
2D, two-dimensional.
Carrier types ‘e’ and ‘h’ denote ‘electron’ and ‘hole’, respectively. NL represents the number of layers, mx* and my* are carrier effective masses for directions x and y, respectively, E1x (E1y) and Cx_2D (Cy_2D) are the deformation potential and 2D elastic modulus for the x (y) direction. Mobilities μx_2D and μy_2D were calculated using equation (1) with the temperature T set to 300 K.