Optical properties of self-organized gold nanorod-polymer hybrid films

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Ulrich Tritschler - , Universität Konstanz (Autor:in)
  • Igor Zlotnikov - , Multi-Skalen-Analyse (NFoG), Max Planck Institute of Colloids and Interfaces (Autor:in)
  • Philipp Keckeis - , Universität Konstanz (Autor:in)
  • Helmut Schlaad - , Max Planck Institute of Colloids and Interfaces, Universität Potsdam (Autor:in)
  • Helmut Cölfen - , Universität Konstanz (Autor:in)

Abstract

High fractions of gold nanorods were locally aligned by means of a polymeric liquid crystalline phase. The gold nanorods constituting >80 wt % of the thin organic-inorganic composite films form a network with side-by-side and end-to-end combinations. Organization into these network structures was induced by shearing gold nanorod-LC polymer dispersions via spin-coating. The LC polymer is a polyoxazoline functionalized with pendent cholesteryl and carboxyl side groups enabling the polymer to bind to the CTAB stabilizer layer of the gold nanorods via electrostatic interactions, thus forming the glue between organic and inorganic components, and to form a chiral nematic lyotropic phase. The self-assembled locally oriented gold nanorod structuring enables control over collective optical properties due to plasmon resonance coupling, reminiscent of enhanced optical properties of natural biomaterials.

Details

OriginalspracheEnglisch
Seiten (von - bis)13781-13790
Seitenumfang10
FachzeitschriftLangmuir
Jahrgang30
Ausgabenummer46
PublikationsstatusVeröffentlicht - 25 Nov. 2014
Peer-Review-StatusJa

Externe IDs

PubMed 25350776