Nanopipes in gallium nitride nanowires and rods.
Gallium nitride nanowires and rods synthesized by a catalyst-free vapor-solid growth method were analyzed with cross section high-resolution transmission electron microscopy. The cross section studies revealed hollow core screw dislocations, or nanopipes, in the nanowires and rods. The hollow cores were located at or near the center of the nanowires and rods, along the axis of a screw dislocation. The formation of the hollow cores is consistent with effect of screw dislocations with giant Burgers vector predicted by Frank.
Jacobs
Benjamin W
BW
Department of Electrical and Computer Engineering, Michigan State University, East Lansing 48824, USA. jacobsbe@egr.msu.edu
Crimp
Martin A
MA
McElroy
Kaylee
K
Ayres
Virginia M
VM