Please use this identifier to cite or link to this item: https://doi.org/10.1021/nl2035089
Title: Phase selection enabled formation of abrupt axial heterojunctions in branched oxide nanowires
Authors: Gao, J.
Lebedev, O.I.
Turner, S.
Li, Y.F.
Lu, Y.H. 
Feng, Y.P. 
Boullay, P.
Prellier, W.
Van Tendeloo, G.
Wu, T.
Keywords: branched nanowire
heterojunction
indium tin oxide
phase selection
Vapor-liquid-solid growth
Issue Date: 11-Jan-2012
Source: Gao, J., Lebedev, O.I., Turner, S., Li, Y.F., Lu, Y.H., Feng, Y.P., Boullay, P., Prellier, W., Van Tendeloo, G., Wu, T. (2012-01-11). Phase selection enabled formation of abrupt axial heterojunctions in branched oxide nanowires. Nano Letters 12 (1) : 275-280. ScholarBank@NUS Repository. https://doi.org/10.1021/nl2035089
Abstract: Rational synthesis of nanowires via the vapor-liquid-solid (VLS) mechanism with compositional and structural controls is vitally important for fabricating functional nanodevices from bottom up. Here, we show that branched indium tin oxide nanowires can be in situ seeded in vapor transport growth using tailored Au-Cu alloys as catalyst. Furthermore, we demonstrate that VLS synthesis gives unprecedented freedom to navigate the ternary In-Sn-O phase diagram, and a rare and bulk-unstable cubic phase can be selectively stabilized in nanowires. The stabilized cubic fluorite phase possesses an unusual almost equimolar concentration of In and Sn, forming a defect-free epitaxial interface with the conventional bixbyite phase of tin-doped indium oxide that is the most employed transparent conducting oxide. This rational methodology of selecting phases and making abrupt axial heterojunctions in nanowires presents advantages over the conventional synthesis routes, promising novel composition-modulated nanomaterials. © 2011 American Chemical Society.
Source Title: Nano Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/53087
ISSN: 15306984
DOI: 10.1021/nl2035089
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

22
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

20
checked on Nov 22, 2017

Page view(s)

40
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.