title: Polarity and growth directions in Sn-seeded GaSb nanowires.
abstract: We here investigate the growth mechanism of Sn-seeded GaSb nanowires and demonstrate how the seed particle and its dynamics at the growth interface of the nanowire determine the polarity, as well as the formation of structural defects. We use aberration-corrected scanning transmission electron microscopy imaging methodologies to study the interrelationship between the structural properties, i.e. polarity, growth mechanism, and formation of inclined twin boundaries in pairs. Moreover, the optical properties of the Sn-seeded GaSb nanowires are examined. Their photoluminescence response is compared with one of their Au-seeded counterparts, suggesting the incorporation of Sn atoms from the seed particles into the nanowires.
authors.affiliation: Solid State Physics, Lund University, Box 118, Lund 22100, Sweden. reza.r.zamani@gmail.com reza.zamani@ftf.lth.se.
authors.forename: Reza R
authors.identifier: http://orcid.org/0000-0001-6940-0000
authors.initials: RR
authors.lastname: Zamani
authors.affiliation: Solid State Physics, Lund University, Box 118, Lund 22100, Sweden. reza.r.zamani@gmail.com reza.zamani@ftf.lth.se.
authors.forename: Sepideh
authors.initials: S
authors.lastname: Gorji Ghalamestani
authors.affiliation: Solid State Physics, Lund University, Box 118, Lund 22100, Sweden. reza.r.zamani@gmail.com reza.zamani@ftf.lth.se.
authors.forename: Jie
authors.initials: J
authors.lastname: Niu
authors.affiliation: Solid State Physics, Lund University, Box 118, Lund 22100, Sweden. reza.r.zamani@gmail.com reza.zamani@ftf.lth.se.
authors.forename: Niklas
authors.initials: N
authors.lastname: Sköld
authors.affiliation: Solid State Physics, Lund University, Box 118, Lund 22100, Sweden. reza.r.zamani@gmail.com reza.zamani@ftf.lth.se and Centre for Analysis and Synthesis, Lund University, Box 118, Lund 22100, Sweden.
authors.forename: Kimberly A
authors.initials: KA
authors.lastname: Dick