Author(s): Sun, Q (Sun, Qiang); Pan, D (Pan, Dong); Zhang, XT (Zhang, Xutao); Zhao, JH (Zhao, Jianhua); Chen, PP (Chen, Pingping); Lu, W (Lu, Wei); Zou, J (Zou, Jin)

Source: NANO RESEARCH DOI: 10.1007/s12274-020-3231-9 Early Access Date: MAR 2021

Abstract: In this study, we demonstrate the axiotaxy driven growth of belt-shaped InAs nanowires using Au catalysts by molecular beam epitaxy. It is found that, the zinc-blende structured InAs nanowires, with the features of [(113) over bar] growth direction and extensive {1 (1) over bar0} side-surfaces, are induced by catalysts in Au-In alpha phase through the axiotaxy growth, in which the lattice mismatch between the projections of atomic planes onto nanowire/catalyst interfaces is minimized by forming extraordinary tilted interfaces. Our atomic-resolution in situ TEM heating experiments show that the catalysts remained in the solid state of Au-in alpha phase during the axiotaxy growth, by which the vapor-solid-solid growth mechanism can be confirmed. Through manipulating the growth direction, this unusual growth mechanism can provide a practical pathway to control the morphology of the low-dimensional nanomaterials, from conventional nanowires to belt-shaped nanowires utilizing a significant lateral growth, simply using nanoparticles as catalyst.

Accession Number: WOS:000631787700005

ISSN: 1998-0124

eISSN: 1998-0000

Full Text: https://link.springer.com/article/10.1007/s12274-020-3231-9