Table 2 Optical parameters of the \(\hbox {X}_2\hbox {YH}_2\) binary compounds, for perpendicular and parallel polarizations.
From: Prediction of hydrogenated group IV–V hexagonal binary monolayers
\(\hbox {E}^\perp \) | \(\hbox {E}^\parallel \) | ||||||
|---|---|---|---|---|---|---|---|
Metallic Range (nm) | \(E (\epsilon _2^{peak})\) (eV) | High Abs. Range (nm) | Metallic Range (nm) | \(E (\epsilon _2^{peak})\) (eV) | Sig. \(\alpha \) Rng. (nm) | ||
Group-A | |||||||
\(\hbox {Si}_2\hbox {PH}_2\) | 280–155 | 3.74 | 375–150 | – | 7.69 | 195–145 | |
\(\hbox {Si}_2\hbox {AsH}_2\) | 310–165 | 3.53 | 395–155 | – | 7.06 | 200–150 | |
\(\hbox {Si}_2\hbox {SbH}_2\) | 340–200 | 3.05 | 465–170 | – | 6.77 | 220–160 | |
\(\hbox {Ge}_2\hbox {PH}_2\) | 290–195 | 3.4 | 430–155 | – | 7.37 | 210–155 | |
Group-B | |||||||
\(\hbox {Si}_2\hbox {BiH}_2\) | – | 2.72 | 525–100 | 175–130 | 7 | 250–125 | |
\(\hbox {Ge}_2\hbox {AsH}_2\) | – | 3.38 | 450–135 | 170–140 | 7.15 | 250–125 | |
\(\hbox {Ge}_2\hbox {SbH}_2\) | – | 3.05 | 495–120 | 175–135 | 7.07 | 255–120 | |
\(\hbox {Ge}_2\hbox {BiH}_2\) | – | 2.72 | 530–120 | 180–140 | 6.98 | 270–125 | |
