Figure 2: h-BN’s preferential grain boundary orientations.
From: Chemical and Bandgap Engineering in Monolayer Hexagonal Boron Nitride
(a,b) Optical and atomic model illustrations of GB angle, the β and the crystal angle, the α. As a twin plane, the GB bisects the α. (c,d) Representative optical images showing that in different h-BN crystals, the GBs bisect the crystal angles and the statistic histogram of α/β ratios centers at 2.0 out of 100 h-BN crystals.
