Table 1. Size (x-Length, y-Length in Å) Dependence of the Calculated Conductivities along the Perpendicular (σx) and Parallel (σy) Directions to the Zigzag Edges in Units of , Together with the LUMO–HOMO (L–H) Gap in eV for “Tetragonal” n × n Nanographenes, n = 3–12.
structure | x-length (Å) | y-length (Å) | L–H (eV) | ||
---|---|---|---|---|---|
3 × 3 | 13.566 | 9.211 | 0.03 | 0.01 | 1.24 |
4 × 4 | 17.818 | 11.682 | 0.11 | 0.02 | 0.32 |
5 × 5 | 22.081 | 14.134 | 0.22 | 0.04 | 0.19 |
6 × 6 | 26.345 | 16.594 | 0.39 | 0.05 | 0.15 |
7 × 7 | 30.601 | 19.057 | 0.40 | 0.14 | 0.31 |
8 × 8 | 34.869 | 21.510 | 0.44 | 0.19 | 0.36 |
9 × 9 | 39.126 | 23.971 | 1.127 | 0.27 | 0.35 |
10 × 10 | 43.377 | 26.433 | 2.60 | 0.45 | 0.15 |
11 × 11 | 47.580 | 28.914 | 3.83 | 0.57 | 0.09 |
12 × 12 | 51.908 | 31.390 | 4.66 | 0.76 | 0.14 |