Figure 6: In situ observation of crystal defect formation.

Confocal fluorescent and schematic images showing (a) a grain boundary in the 110 plane of a Cs6C60 crystal and (b) antisite as well as vacancy defects in a CsCl crystal. (c–e) Snapshots from videos showing the formation of crystal defects. (c) A three-particle vacancy defect is obtained at the intersection between two crystals and a single-particle vacancy defect forms as the crystal grows. (d) A green particle is trapped in a mismatched location when two crystals merge, leading to the formation of an antisite defect. (e) Grain boundaries form when two crystals merge, while their orientations are not aligned. See also Supplementary Movies 7 and 8. Scale bar, 5 μm.