Related Experiment Video
Updated: Mar 24, 2026

Determining the Mechanical Strength of Ultra-Fine-Grained Metals
Published on: November 22, 2021
Y-shaped ZnO Nanobelts Driven from Twinned Dislocations
Yuan Shi1, Shuhan Bao1, Run Shi1
1Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, China.
Abstract:
Y-shaped ZnO nanobelts are fabricated by a simple thermal evaporation method. Transmission Electron Microscopy (TEM) investigation shows that these ZnO nanobelts are crystals with twinned planes {11-21}. Convergent Beam Electron Diffraction studies show that the two sides of twinned nanobelts are O-terminated towards the twinned boundary and Zn-terminated outwards. The two branches of twinned ZnO nanobelts grow along [11-26] from the trunk and then turn to the polarization direction [0001]. The featured Y-shape morphology and TEM characterizations indicate that the growth of these novel nanostructures is driven by an unusual twinned dislocation growth mechanism.
Related Concept Videos
Ziegler–Natta Chain-Growth Polymerization: Overview
Imperfections in Crystal Structure: Stoichiometric Point Defects
Imperfections in Crystal Structure: Point, Line and Plane Defects

