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. 2022 Oct 23;13:6313. doi: 10.1038/s41467-022-33822-8

Fig. 4. Ab-initio GW+BSE results.

Fig. 4

a The solid line displays the absorption spectrum of Bi/SiC inferred from the imaginary part of the dielectric function from the BSE calculation. The dashed line displays the joint density of states from the GW calculation, where the electron-hole interaction is neglected. b Convergence of the A and B exciton peaks as a function of the inverse of the number of k-points. The intersection of the gray dashed line with the y-axis gives the result ideally obtained from an infinitely dense k-mesh. c Lateral and top views of the A exciton wave-function. The radius of the exciton is ~3 nm.