Nanopatterning and nanocharge writing in layer-by-layer quinquethiophene/phthalocyanine ultrathin films

Akira Baba, Jason Locklin, Risheng Xu, Rigoberto Advincula

研究成果: Article査読

25 被引用数 (Scopus)

抄録

Nanometer-scale patterning and charging in layer-by-layer (LbL) ultrathin films of quinquethiophene (5TN)/phthalocyanine (CuPS) provides a novel write-read device using a standard current-sensing atomic force microscopy (CS-AFM). The AFM height images showed dented or raised morphological features that could be selectively manipulated by changing the direction of the bias voltages. The conductivity was repeatedly changed between a conductive and insulating state, originating from an electrochemical charging-discharging effect. This was attributed to electrochemical ion transport and the residual mobile ions present in LbL films. Finally, the nanocharge pattern was written by CS-AFM and read out in a conductivity map image.

本文言語English
ページ(範囲)42-45
ページ数4
ジャーナルJournal of Physical Chemistry B
110
1
DOI
出版ステータスPublished - 2006 1 12
外部発表はい

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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