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dc.contributor.authorGao, Jingen
dc.contributor.authorTurner, Stuarten
dc.contributor.authorLi, Yongfengen
dc.contributor.authorLu, Yun Haoen
dc.contributor.authorFeng, Yuan Pingen
dc.contributor.authorBoullay, Philippeen
dc.contributor.authorPrellier, Wilfriden
dc.contributor.authorTendeloo, Gustaaf vanen
dc.contributor.authorWu, Tomen
dc.contributor.authorLebedev, Oleg I.en
dc.identifier.citationGao, J., Lebedev, O. I., Turner, S., Li, Y. F., Lu, Y. H., Feng, Y. P., et al. (2012). Phase Selection Enabled Formation of Abrupt Axial Heterojunctions in Branched Oxide Nanowires. Nano Letters, 12(1), 275-280.en
dc.description.abstractRational 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.en
dc.relation.ispartofseriesNano lettersen
dc.rights© 2011 American Chemical Society.en
dc.titlePhase selection enabled formation of abrupt axial heterojunctions in branched oxide nanowiresen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
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