Dynamic growth modes of ordered arrays and mesocrystals during drop-casting of iron oxide nanocubesVise andre og tillknytning
2014 (engelsk)Inngår i: CrystEngComm, ISSN 1466-8033, E-ISSN 1466-8033, Vol. 16, nr 8, s. 1443-1450Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
The growth modes of self-assembled mesocrystals and ordered arrays from dispersions of iron oxide nanocubes with a mean edge length of 9.6 nm during controlled solvent removal have been investigated with a combination of visible light video microscopy, atomic force microscopy and scanning electron microscopy. Mesocrystals with translational and orientational order of sizes up to 10 μm are formed spontaneously during the final, diffusion-controlled, drop-casting stage when the liquid film is very thin and the particle concentration is high. Convection-driven deposition of ordered nanocube arrays at the edge of the drying droplet is a manifestation of the so called coffee-ring effect. Dendritic growth or fingering of rapidly growing arrays of ordered nanocubes could also be observed in a transition regime as the growth front moves from the initial three-phase contact line towards the centre of the original droplet.
sted, utgiver, år, opplag, sider
2014. Vol. 16, nr 8, s. 1443-1450
HSV kategori
Forskningsprogram
Kemisk teknologi
Identifikatorer
URN: urn:nbn:se:ltu:diva-9971DOI: 10.1039/c3ce41871eISI: 000330781000006Scopus ID: 2-s2.0-84893190249Lokal ID: 8b4cdd32-9074-45e9-8acd-e7e525b7514dOAI: oai:DiVA.org:ltu-9971DiVA, id: diva2:982910
Merknad
Validerad; 2014; 20140217 (andbra)
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