Guiding crystallization around bends and sharp corners

Stephanie S. Lee, Samuel B. Tang, Detlef M. Smilgies, Arthur R. Woll, Marsha A. Loth, Jeffrey M. Mativetsky, John E. Anthony, Yueh Lin Loo

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Control over the molecular orientation in organic thin films is demonstrated with precise in-plane spatial resolution over large areas. By exploiting the differential crystallization rates on substrates with different surface energies, the radial symmetry of spherulitic growth can be disrupted by preferentially selecting the molecular orientations that promote growth along the paths of the underlying patterns.

Original languageEnglish
Pages (from-to)2692-2698
Number of pages7
JournalAdvanced Materials
Volume24
Issue number20
DOIs
StatePublished - May 22 2012

Keywords

  • directed crystallization
  • organic thin films
  • solvent-vapor annealing
  • spherulite

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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