Multiple-layered colloidal assemblies via dipping method with an external electric field

Sang Hyuk Im, O. Ok Park, Moo Hyun Kwon

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

When using the dipping method for crystal formation, mono-layered colloidal crystal structures depend upon the lift-up rate of a glass substrate. The mono-layered colloidal crystals showed the highest quality when the glass substrate was raised at a rate of 3 mm/min at 25°C in a 1 wt% polystyrene colloidal suspension (ethanol medium). In addition, in order to obtain multiple-layered colloidal crystals, an external electric field was introduced. Multiple-layered colloidal crystals were successfully obtained via this method. The colloidal panicles were well ordered over large areas and assembled into a homogeneous structure.

Original languageEnglish
Pages (from-to)110-114
Number of pages5
JournalMacromolecular Research
Volume11
Issue number2
DOIs
Publication statusPublished - 2003 Apr
Externally publishedYes

Keywords

  • Colloidal crystals
  • Colloidal suspension
  • Mono-layer
  • Multiple-layer

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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