Electrochemical cross-linking and patterning of nanostructured poly electrolyte-carbazole precursor ultrathin films

Chengyu Huang, Guoqian Jiang, Rigoberto Advincula

研究成果: Article

53 引用 (Scopus)

抜粋

Nanostructured ultrathin films of pendant carbazole-modified polyelectrolytes were fabricated using the layer-by-layer deposition technique in order to correlate the importance of highly ordered structures and well-defined layer composition in electrochemical cross-linking and nanopatterning. Both UV-vis and surface plasmon resonance (SPR) spectroscopy studies indicated differences in the film structure and bilayer formation based on the degree of electrostatic interaction and carbazole content. Cyclic voltammetry (CV) and SPR studies confirmed the relationship between film structure and the amount of carbazole units per layer affecting the degree of electrochemical cross-linking. CV in particular was used to determine the mechanism of electron transport and electrochemical cross-linking phenomena. Nanopatterning was demonstrated using current sensing AFM (CS-AFM) in which different applied voltages, writing speeds, and composition of polyelectrolytes were studied together with the formation of a complex nanopattern.

元の言語English
ページ(範囲)4661-4670
ページ数10
ジャーナルMacromolecules
41
発行部数13
DOI
出版物ステータスPublished - 2008 7 8
外部発表Yes

ASJC Scopus subject areas

  • Materials Chemistry

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