Convectively assembled nonspherical mushroom cap-based colloidal crystals

Ian D. Hosein, Chekesha M. Liddell

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

Monolayers from mushroom cap-shaped polymer colloids were fabricated by a vertical substrate deposition technique. As confirmed by SEM and autocorrelation analysis, the monolayers show long-range hexagonal packing with particle orientational freedom restricted to either "heads up" or "heads down" alignment with respect to the substrate. The monolayers are modeled as a 2D diffraction grating and were studied with selected area laser diffraction. The stacking of ordered monolayers into the third dimension was achieved via layer-by-layer deposition. Convective assembly is shown as a viable approach to the large-scale crystallization of monodisperse nonspherical colloids.

Original languageEnglish (US)
Pages (from-to)8810-8814
Number of pages5
JournalLangmuir
Volume23
Issue number17
DOIs
StatePublished - Aug 14 2007
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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