Electrochemically nanopatterned conducting coronas of a conjugated polymer precursor: SPM parameters and polymer composition

Subbiah Jegadesan, Prasad Taranekar, Swaminathan Sindhu, Rigoberto C. Advincula, Suresh Valiyaveettil

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Here we describe the formation of precisely controlled corona-type nanopatterns on electroactive polymer precursor films using scanning probe microscopy (SPM) methods. The binary composition of electroactive groups in the polymer triggers the formation of corona-type nanopatterns at particular voltages and tip writing speeds through the electrooxidation of the polymer precursor film. Various parameters such as tip speed and applied bias were explored in the nanopatterning process, and the formation of a conductive nanopattern was investigated using conducting atomic force microscopy (C-AFM). The formation of the nanopattern was attributed to the flow of electrons from the AFM tip to the polymer film in a controlled electric field distribution. We also report a new method to distinguish the polymer composition and distribution of a polymer blend film by characterizing biasing differences in the patterning of a polymer film.

Original languageEnglish
Pages (from-to)3807-3811
Number of pages5
JournalLangmuir
Volume22
Issue number8
DOIs
Publication statusPublished - 2006 Apr 11
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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    Jegadesan, S., Taranekar, P., Sindhu, S., Advincula, R. C., & Valiyaveettil, S. (2006). Electrochemically nanopatterned conducting coronas of a conjugated polymer precursor: SPM parameters and polymer composition. Langmuir, 22(8), 3807-3811. https://doi.org/10.1021/la052812k