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Self-assembly of a ...
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Ukleev, V.BP Konstantinov Petersburg Nucl Phys Inst, Kurchatov Inst, Natl Res Ctr, Gatchina 188300, Russia.;RIKEN, Ctr Emergent Matter Sci, Wako, Saitama 3510198, Japan.
(författare)
Self-assembly of a binary mixture of iron oxide nanoparticles in Langmuir film : X-ray scattering study
- Artikel/kapitelEngelska2017
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Elsevier BV,2017
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LIBRIS-ID:oai:DiVA.org:uu-340671
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-340671URI
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https://doi.org/10.1016/j.matchemphys.2017.08.069DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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In present study we exploited Langmuir technique to produce self-assembled arrays composed of monodisperse iron oxide nanoparticles 10 nm and 20 nm in diameter and of their binary mixture. A combination of in-situ X-ray reflectometry and Grazing-incident small-Angle X-ray scattering was used to obtain in-plane and out-of-plane structure of the arrays directly on the water surface. Surface pressure isotherms and X-ray reflectometry analysis showed that monodisperse 10 nm nanoparticles form a highly ordered monolayer, while 20 nm particles pack in three-dimensional clusters with a short-range (nearest-neighbor) correlations between the particles. In a binary mixture of 10 nm and 20 nm nano particles composed in proportion 3:1 the self-assembly process results in a structure where the monolayer of 10 nm particles is perturbed by the larger particles. Non-trivial mixing causes an enlargement of interparticle distance but keeps the symmetry of two-dimensional lattice of smaller nanoparticles. Estimation of the acting interactions and micromagnetic simulation suggest the optimal formation for monodisperse and binary ensembles.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Khassanov, A.Friedrich Alexander Univ Erlangen Nurnberg, Dept Mat Sci, Inst Polymer Mat, Martensstr 7, D-91058 Erlangen, Germany.
(författare)
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Snigireva, I.European Synchrotron Radiat Facil, 71 Ave Martyrs,CS40220, F-38043 Grenoble 9, France.
(författare)
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Konovalov, O.European Synchrotron Radiat Facil, 71 Ave Martyrs,CS40220, F-38043 Grenoble 9, France.
(författare)
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Dudnik, M.BP Konstantinov Petersburg Nucl Phys Inst, Kurchatov Inst, Natl Res Ctr, Gatchina 188300, Russia.
(författare)
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Dubitskiy, I.BP Konstantinov Petersburg Nucl Phys Inst, Kurchatov Inst, Natl Res Ctr, Gatchina 188300, Russia.
(författare)
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Vorobiev, AlexeiUppsala universitet,Materialfysik,European Synchrotron Radiat Facil, 71 Ave Martyrs,CS40220, F-38043 Grenoble 9, France(Swepub:uu)alevo690
(författare)
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BP Konstantinov Petersburg Nucl Phys Inst, Kurchatov Inst, Natl Res Ctr, Gatchina 188300, Russia.;RIKEN, Ctr Emergent Matter Sci, Wako, Saitama 3510198, Japan.Friedrich Alexander Univ Erlangen Nurnberg, Dept Mat Sci, Inst Polymer Mat, Martensstr 7, D-91058 Erlangen, Germany.
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Materials Chemistry and Physics: Elsevier BV202, s. 31-390254-05841879-3312
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