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Entropically driven colloidal crystallization on patterned surfaces

Research output: Contribution to journalArticle

  • K H Lin
  • J C Crocker
  • V Prasad
  • A Schofield
  • D A Weitz
  • T C Lubensky
  • A G Yodh

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)1770-1773
Number of pages4
JournalPhysical Review Letters
Volume85
Issue number8
DOIs
Publication statusPublished - 21 Aug 2000

Abstract

We investigate the self-assembly of colloidal spheres on periodically patterned templates. The surface potentials and the surface phases are induced entropically by the presence of dissolved, nonadsorbing polymers. A rich variety of two-dimensional fluidlike and solidlike phases was observed to form on template potentials with both one- and two-dimensional symmetry. The same methodology was then used to nucleate an oriented single fee crystal more than 30 layers thick. The general approach provides a new route for directed self-assembly of novel mesoscopic structures.

    Research areas

  • PHOTONIC CRYSTALS, PHASE-BEHAVIOR, SUSPENSIONS, PARTICLES, SPHERES, MIXTURE

ID: 1494014