Crystal phase engineering in single InAs nanowires

dc.contributor.authorDick, Kimberley A.
dc.contributor.authorThelander, Claes
dc.contributor.authorSamuelson, Lars
dc.contributor.authorCaroff, Philippe
dc.date.accessioned2015-12-13T22:43:58Z
dc.date.issued2010
dc.date.updated2016-02-24T09:37:56Z
dc.description.abstractAchieving phase purity and control in III-V nanowires is a necessity for future nanowire-based device applications. Many works have focused on cleaning specific crystal phases of defects such as twin planes and stacking faults, using parameters such as diameter, temperature, and impurity incorporation. Here we demonstrate an improved method for crystal phase control, where crystal structure variations in single InAs nanowires are designed with alternating wurtzite (WZ) and zinc blende (ZB) segments of precisely controlled length and perfect interfaces. We also demonstrate the inclusion of single twin planes and stacking faults with atomic precision in their placement, designed ZB quantum dots separated by thin segments of WZ, acting as tunnel barriers for electrons, and structural superlattices (polytypic and twin plane). Finally, we present electrical data to demonstrate the applicability of these designed structures to investigation of fundamental properties. From electrical measurements we observe clear signatures of controlled structural quantum dots in nanowires. This method will be directly applicable to a wide range of nanowire systems.
dc.identifier.issn1530-6984
dc.identifier.urihttp://hdl.handle.net/1885/79446
dc.publisherAmerican Chemical Society
dc.sourceNano Letters
dc.subjectKeywords: Atomic precision; Crystal phase; Crystal phase control; Crystal phasis; Crystal structure variation; Device application; Electrical data; Electrical measurement; Fundamental properties; Improved methods; Impurity incorporation; InAs; Phase purity; Quantum crystal structure; electron microscopy; InAs; Nanowire; wurtzite; zinc blende
dc.titleCrystal phase engineering in single InAs nanowires
dc.typeJournal article
local.bibliographicCitation.issue9
local.bibliographicCitation.lastpage3499
local.bibliographicCitation.startpage3494
local.contributor.affiliationDick, Kimberley A., Lund University
local.contributor.affiliationThelander, Claes, Lund University
local.contributor.affiliationSamuelson, Lars, Lund University
local.contributor.affiliationCaroff, Philippe, College of Physical and Mathematical Sciences, ANU
local.contributor.authoremailu5309137@anu.edu.au
local.contributor.authoruidCaroff, Philippe, u5309137
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor100706 - Nanofabrication, Growth and Self Assembly
local.identifier.absfor020406 - Surfaces and Structural Properties of Condensed Matter
local.identifier.ariespublicationf5625xPUB7886
local.identifier.citationvolume10
local.identifier.doi10.1021/nl101632a
local.identifier.scopusID2-s2.0-77956448822
local.identifier.uidSubmittedByf5625
local.type.statusPublished Version

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