Large-scale regioselective formation of well-defined stable wrinkles of multilayered films via embossing

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Conghua Lu - , Max Planck Institute of Colloids and Interfaces, Tianjin University (Autor:in)
  • Helmuth Möhwald - , Max Planck Institute of Colloids and Interfaces (Autor:in)
  • Andreas Fery - , Universität Bayreuth (Autor:in)

Abstract

We report on large-scale fabrication of wrinkled polyelectrolyte multilayers (PEMs) with well-defined surface relief structures by embossing. The embossed assembly films show hierarchical topography consisting of patterns on the micrometer scale defined by the stamp used for embossing that are decorated by stable and highly regular patterns on the submicrometer scale. The periodicities of the concentric wrinkles can be controlled well down to 250 nm. We propose that a new mechanism of combining inelastic deformation of the support and selective wetting by the PEM film to be responsible for the above wrinkling with high stability in the wet state and enhanced aspect ratio.

Details

OriginalspracheEnglisch
Seiten (von - bis)7052-7059
Seitenumfang8
FachzeitschriftChemistry of materials
Jahrgang20
Ausgabenummer22
PublikationsstatusVeröffentlicht - 25 Nov. 2008
Peer-Review-StatusJa
Extern publiziertJa