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. 2017 Jan 24;7:39844. doi: 10.1038/srep39844

Table 2. Comparison of exciton binding energies |Eb| and GW band gaps.

  MoS2 hBN Si(111)
Binding energy
Present 0.44 1.90 0.20
Ab initio 0.1522, 0.434, 0.6525 1.832, 2.054, 2.120 0.2618
GW and TB gaps
Present 2.42 8.00 0.66
Ab initio 2.4833, 2.725 7.932, 7.420 0.6217, 0.6918

All values are in eV. Note, only exciton binding energies are actually calculated in the present work. Appropriate TB band gaps are ensured by using TB parameters which ensure agreement between experimental and theoretical exciton features. Superscripts indicate references.