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

Akira Baba, Jason Locklin, Risheng Xu, Rigoberto Advincula

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)42-45
Number of pages4
JournalJournal of Physical Chemistry B
Volume110
Issue number1
DOIs
Publication statusPublished - 2006 Jan 12
Externally publishedYes

Fingerprint

Ultrathin films
Atomic Force Microscopy
Atomic force microscopy
Ions
Ion Transport
atomic force microscopy
Bias voltage
charging
Equipment and Supplies
conductivity
ions
phthalocyanine
electric potential
Direction compound

ASJC Scopus subject areas

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

Cite this

Nanopatterning and nanocharge writing in layer-by-layer quinquethiophene/phthalocyanine ultrathin films. / Baba, Akira; Locklin, Jason; Xu, Risheng; Advincula, Rigoberto.

In: Journal of Physical Chemistry B, Vol. 110, No. 1, 12.01.2006, p. 42-45.

Research output: Contribution to journalArticle

Baba, Akira ; Locklin, Jason ; Xu, Risheng ; Advincula, Rigoberto. / Nanopatterning and nanocharge writing in layer-by-layer quinquethiophene/phthalocyanine ultrathin films. In: Journal of Physical Chemistry B. 2006 ; Vol. 110, No. 1. pp. 42-45.
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