Polythiophene precursor electrochemical nanolithography: Highly local thermal and morphological characterization

Jin Young Park, Prasad Taranekar, Rigoberto Advincula*

*この研究の対応する著者

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We describe the formation of nanopatterns on an electroactive polythiophene precursor (polyterthiophene methylmethacrylate, P3T) film using a current-sensing atomic force microscopy (CS-AFM) technique. Patterning parameters such as applied bias voltages, sweep duration, and scan rate were adapted for the nanolithographic electrochemical patterning process. The formation of nanopatterns on the film was mainly attributed to the electrochemical cross-linking and oxidation process of the terthiophene units. This is related to the electron transport process under an applied electric field and mass transfer due to Joule heating generated in a localized area from the tip. To further highlight the role of Joule heating, thermal AFM lithography of various blend film compositions (P3T:PMMA) was made using the heated tip AFM (HT-AFM) method. The thermal effects on local morphology were then studied not only as a function of sequential increase in local temperature, but also by nano-scale direct thermal-writing.

本文言語English
ページ(範囲)1849-1855
ページ数7
ジャーナルSoft Matter
7
5
DOI
出版ステータスPublished - 2011 3月 7
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学

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