{
    "units": "eV",
    "2sideH-Gr": {
        "band_gap": 6.1,
        "optical_band_gap": 4.66
    },
    "2sideH-bGr_TAB_hex": {
        "band_gap": 5.1,
        "optical_band_gap": 4
    },
    "2sideH-bGr_R_hex": {
        "band_gap": 4.7,
        "optical_band_gap": 4.37
    }
}