Self-Assembled Structures of Disc-Like Colloidal Particles
2011 (English)In: Trends in colloid andinterface science XXIV / [ed] Viktor Starov, Karel Procházka, Springer , 2011, 61-65 p.Conference paper (Refereed)
Self-assembly is an important phenomenon that leads to formation of interesting and novel structures in colloidal dispersions. We present experimental evidence for the existence of a ‘cubatic’ phase in a colloidal dispersion of disc-like particles of nickel hydroxide colloidal dispersions. In this structure, disc-like particles self-assemble as domains of a few parallel discs and the orientation tends to be orthogonal in adjacent domains. This phase has been predicted previously by computer simulations. The domains are approximately equiaxial and are predicted to exist only within a limited range of aspect ratios and volume fractions. We have used the real space technique of cryo-transmission electron microscopy in our studies as this locally ordered structure could not be identified readily using scattering techniques, since the patterns are expected to be similar to those of isotropic liquid phases.
Place, publisher, year, edition, pages
Springer , 2011. 61-65 p.
, Progress in Colloid and Polymer Science, ISSN 0340-255X ; 138
Cubatic Phase, Plate-like colloids, Cryotransmission electron microscopy
IdentifiersURN: urn:nbn:se:uu:diva-152871DOI: 10.1007/978-3-642-19038-4_11ISI: 000295091800011ISBN: 9783642190377OAI: oai:DiVA.org:uu-152871DiVA: diva2:414165
24th Meeting of the European-Colloid-and-Interface-Society (ECIS), September 5-10, 2010, Prague, Czech Republic