Direct electrochemical nanopatterning of polycarbazole monomer and precursor polymer films: Ambient formation of thermally stable conducting nanopatterns

Subbiah Jegadesan, Swaminathan Sindhu, Rigoberto C. Advincula*, Suresh Valiyaveettil

*この研究の対応する著者

研究成果: Article査読

54 被引用数 (Scopus)

抄録

The direct nanopatterning of polycarbazole on ultrathin films of a "precursor polymer" and monomer under ambient conditions is reported. In contrast to previous reports on electrochemical dip-pen nanolithography using monomer ink or electrolyte-saturated films in electrostatic nanolithography, these features were directly patterned on spin-cast films of carbazole monomer and poly(vinylcarbazole) (PVK) under room temperature and humidity conditions. Using a voltage-biased atomic force microscope (AFM) tip, electric-field-induced polymerization and cross-linking occurred with nanopatterning in these films. Different parameters, including writing speed and bias voltages, were studied to demonstrate line width and patterning geometry control. The conducting property (current - voltage (I - V) curves) of these nanopatterns was also investigated using a conducting-AFM (C-AFM) setup, and the thermal stability of the patterns was evaluated by annealing the polymer/monomer film above the glass transition (T g) temperature of the precursor polymer. To the best of our knowledge, this is the first report in which thermally stable conducting nanopatterns were drawn directly on monomer or polymer film substrates using an electrochemical nanolithography technique under ambient conditions.

本文言語English
ページ(範囲)780-786
ページ数7
ジャーナルLangmuir
22
2
DOI
出版ステータスPublished - 2006 1月 17
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • コロイド化学および表面化学

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