Reversible heat-induced microwrinkling of PEDOT: PSS nanofilm surface over a monodomain liquid crystal elastomer

Francesco Greco, Valentina Domenici, Stefano Romiti, Tareq Assaf, Blaž Zupančič, Jerneja Milavec, Boštjan Zalar, Barbara Mazzolai, Virgilio Mattoli

研究成果: Article査読

8 被引用数 (Scopus)

抄録

New bilayered composite systems with tunable and temperature-dependent formation of periodical wrinkles on the surface are the object of this report. The samples were prepared by spin-coating deposition of a thin film of the conducting polymer poly(ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) on the surface of standard monodomain liquid crystal elastomer (LCE) films. Several bilayered materials were prepared by changing the thickness of PEDOT:PSS nanofilms. Basic characterization showed very good stability and adhesion between the two components also after performing multiple heat cycles around nematic-to-isotropic transition temperature of the LCE. Interestingly, formation of uniaxially aligned microwrinkles was observed, with most of the wrinkles aligned along perpendicular direction with respect to the nematic director, due to reversible elongation/compression of the LCE during thermal cycles.

本文言語English
ページ(範囲)40-49
ページ数10
ジャーナルMolecular Crystals and Liquid Crystals
572
1
DOI
出版ステータスPublished - 2013 3 1
外部発表はい

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Science(all)

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