Growth of ordered arrangements of one-dimensional germanium nanostructures with controllable crystallinities

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dc.contributor.authorPetkov, Nikolay
dc.contributor.authorBirjukovs, Pavels
dc.contributor.authorPhelan, Richard
dc.contributor.authorMorris, Michael A.
dc.contributor.authorErts, Donats
dc.contributor.authorHolmes, Justin D.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderLatvijas Zinātnes Padome
dc.date.accessioned2019-07-18T09:12:10Z
dc.date.available2019-07-18T09:12:10Z
dc.date.issued2008-01-31
dc.date.updated2019-06-28T15:56:08Z
dc.description.abstractChannelled templates such as anodic alumina membranes (AAMs) can be utilized to host, isolate, and guide the growth of one-dimensional (1D) nanostructures. In this study, we present a method for Au-seeded and confined growth of 1D Ge nanostructures with controlled crystallinities and electrical properties within the channels of AAMs. Our approach combines Au nanoparticle seeded growth of semiconductor nanowires by supercritical fluid−liquid–solid (SFLS) mechanism and the highly anisotropic structure of the aligned channels in AAMs. Au seeds with nanosized dimensions were prepositioned inside channelled substrates, followed by SFLS growth at temperatures slightly higher than the Au/Ge eutectic point. Microscopy and XRD measurements reveal that the 1D nanostructures can be obtained with tuneable and controllable crystallinity, grain size and domain boundaries, ranging from chains of Au-nanoparticles connected through semiconductor Ge nanocrystallities, to Au-seeded Ge single crystalline nanowires. Conditions that control the type of Ge nanostructures are (i) the distribution and size of the Au seeds across the alumina surfaces, (ii) the type of SCF deposition, e.g., batch versus flow-through deposition. Additionally, we present electrical data of the ordered arrays of 1D nanostructures, measured by conductive atomic force microscopy (c-AFM), and contrast the data to that previously obtained for similar systems.en
dc.description.sponsorshipLatvijas Zinātnes Padome (Latvian Materials National Program)
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPetkov, N., Birjukovs, P., Phelan, R., Morris, M. A., Erts, D. and Holmes, J. D. (2008) 'Growth of Ordered Arrangements of One-Dimensional Germanium Nanostructures with Controllable Crystallinities', Chemistry of Materials, 20(5), pp. 1902-1908. doi: 10.1021/cm702923ken
dc.identifier.doi10.1021/cm702923ken
dc.identifier.endpage1908en
dc.identifier.issn0897-4756
dc.identifier.issued5en
dc.identifier.journaltitleChemistry of Materialsen
dc.identifier.startpage1902en
dc.identifier.urihttps://hdl.handle.net/10468/8194
dc.identifier.volume20en
dc.language.isoenen
dc.publisherAmerican Chemical Society, ACSen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Principal Investigator Programme (PI)/03/IN.3/I375/IE/The assembly of electronically important materials as structurally and size controlled nanowires into 3-dimensional architectures and construction of Prototype circuitry there from./en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Centre for Science Engineering and Technology (CSET)/03/CE3/M406/IE/CSET CRANN: Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN)/en
dc.relation.urihttps://pubs.acs.org/doi/10.1021/cm702923k
dc.rights© 2008 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/cm702923ken
dc.subjectGermaniumen
dc.subjectAnodic alumina membranes (AAMs)en
dc.subjectChannelled substratesen
dc.subjectControllable crystallinitiesen
dc.subjectAtomic force microscopyen
dc.subjectCrystal growthen
dc.subjectElectric propertiesen
dc.subjectNanostructuresen
dc.subjectX ray diffractionen
dc.subjectNanowiresen
dc.subjectVapor-liquid-solid VLSen
dc.titleGrowth of ordered arrangements of one-dimensional germanium nanostructures with controllable crystallinitiesen
dc.typeArticle (peer-reviewed)en
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