Ni3Se4/ZnSe Heterostructured Nanowires Grown by Molecular Beam Epitaxy

Ni3Se4/ZnSe heterostructured nano­wires with a sharp interface are fabricated using nanocatalysts generated on an annealed Au/Ni/ZnSe trilayer. The top Ni3Se4 section acts as an efficient catalyst to assist ultrafast growth of the bottom ZnSe section. A greater understanding of how the effective are...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2011-06, Vol.7 (11), p.1546-1551
Main Authors: Wang, Gan, Lok, Shu Kin, Wong, George K. L., Sou, Iam Keong
Format: Article
Language:English
Subjects:
molecular-beam epitaxy
nanowires
nickel
selenium
zinc
Online Access:Get full text
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Summary:Ni3Se4/ZnSe heterostructured nano­wires with a sharp interface are fabricated using nanocatalysts generated on an annealed Au/Ni/ZnSe trilayer. The top Ni3Se4 section acts as an efficient catalyst to assist ultrafast growth of the bottom ZnSe section. A greater understanding of how the effective area and size of the catalyst affect the growth rate and preferred axial orientation of ultrathin nanowires is obtained.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.201002319