Unveiling Planar Defects in Hexagonal Group IV Materials.

ABSTRACT: Recently synthesized hexagonal group IV materials are a promising platform to realize efficient light emission that is closely integrated with electronics. A high crystal quality is essential to assess the intrinsic electronic and optical properties of these materials unaffected by structural defects. Here, we identify a previously unknown partial planar defect in materials with a type I₃ basal stacking fault and investigate its structural and electronic properties. Electron microscopy and atomistic modeling are used to reconstruct and visualize this stacking fault and its terminating dislocations in the crystal. From band structure calculations coupled to photoluminescence measurements, we conclude that the I₃ defect does not create states within the he

SUBMITTER: Fadaly EMT 

PROVIDER: S-EPMC8155321 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature