6533b838fe1ef96bd12a3aee

RESEARCH PRODUCT

Effect of cobalt doping on the mechanical properties of ZnO nanowires

Ergo NõmmisteNicola DoebelinRünno LõhmusSven OrasAndris ŠUtkaSergei VlassovBoris PolyakovMikk AntsovMikk Vahtrus

subject

Materials scienceCantileverScanning electron microscopeMechanical EngineeringDopingNanowirechemistry.chemical_elementNanotechnology02 engineering and technologyBending010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences0104 chemical sciencesCharacterization (materials science)chemistryFlexural strengthMechanics of MaterialsGeneral Materials ScienceComposite material0210 nano-technologyCobalt

description

Abstract In this work, we investigate the influence of doping on the mechanical properties of ZnO nanowires (NWs) by comparing the mechanical properties of pure and Co-doped ZnO NWs grown in similar conditions and having the same crystallographic orientation [0001]. The mechanical characterization included three-point bending tests made with atomic force microscopy and cantilever beam bending tests performed inside scanning electron microscopy. It was found that the Young's modulus of ZnO NWs containing 5% of Co was approximately a third lower than that of the pure ZnO NWs. Bending strength values were comparable for both materials and in both cases were close to theoretical strength indicating high quality of NWs. Dependence of mechanical properties on NW diameter was found for both doped and undoped ZnO NWs.

yearjournalcountryeditionlanguage
2016-11-01Materials Characterization
https://doi.org/10.1016/j.matchar.2016.09.027