Fig. 7: Bond distribution function difference Δρ and strain maps for defects in graphene.
From: Strain-modulated defect engineering of two-dimensional materials
(a) Δρ for Nc and (b) for BC defects in graphene without external strain. The vertical dashed lines indicate bond length value for the pristine structure. In the strain maps, red areas indicate bond contraction, blue—bond elongation. In (a) the shorter N-C bonds labeled as “X” gave rise to overall bond length increase in the system, as evident from asymmetric (with regard to the pristine system) bond length distribution and in (b) the longer B-C bonds labeled as “X” gave rise to overall bond length decrease in the system, as evident from asymmetric (with regard to the pristine system) bond length distribution.
