Self-assembled single walled carbon nanotubes on multi-layered polyelectrolyte layer

Chae Woong Cho, Seung Mi Lee, Ungyu Paik, Seon Mi Yoon, Jae Young Choi, Hee Soo Lee

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The assembly behavior of single walled carbon nanotubes (SWCNTs) on the functionalized plasma enhanced tetraethylorthosilicate (PETEOS) substrate was investigated. A poly(diallyldimethylammonium chloride) (PDDA)/poly(acrylic acid) (PAA)/PDDA layered structure was formed to functionalize the substrate utilizing polyelectrolyte layer-by-layer (LBL) assembly technique, and it was identified by attenuated total reflection (ATR) infrared spectroscopy and atomic force microscopy (AFM). The surface morphology of polyelectrolyte layer was manipulated by the polyelectrolyte concentration. It was found that the PDDA/PAA/PDDA multilayer with higher charge stability leads to the improvement of assembly behavior of SWCNTs, compared to PDDA single layer. These results guaranteed high reproducibility of the assembly behavior of CNTs.

Original languageEnglish
Pages (from-to)419-421
Number of pages3
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume313-314
DOIs
StatePublished - 2008 Feb 1

Keywords

  • Polyelectrolyte layer
  • Self-assembly
  • Single walled carbon nanotubes

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