Langmuir-Blodgett films of bis-tetrathiafulvalene substituted macrocycle and TCNQ derivatives

Hideto Miyata, Yoko Tatewaki, Tomoyuki Akutagawa, Tatsuo Hasegawa, Takayoshi Nakamura, Christian A. Christensen, Jan Becher

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

Tetracyanoquinodimethane (TCNQ) derivatives, 2-fluoroTCNQ (F 1TCNQ), 2,5-difluoroTCNQ (F2TCNQ) and 2,5-dichloroTCNQ (Cl2TCNQ) were applied to form molecular nanowire structures of charge transfer complex with dialkyl derivative of bis-tetrathiafulvalene substituted macrocycle (1). When we used Cl2TCNQ, nanowire network structure was obtained as in the case of tetrafluoroTCNQ (F4TCNQ) previously reported. Although the nanowires were shorter compared with those of F4TCNQ complex and formed bundles, they oriented in specific directions recognizing the ionic array on mica surface. In the case of F 1TCNQ and F2TCNQ, we obtained nanowire structures almost identical with those of pure 1. The Cl2TCNQ formed an ionic complex with 1, in which donor units and Cl2TCNQ were in fully charge-transferred state. Reflecting the electronic structure, the conductivity of nanowires was estimated to be 2×10-4 S cm-1.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalThin Solid Films
Volume438-439
DOIs
Publication statusPublished - 2003 Aug 22
Externally publishedYes
EventThe 5th International Conference on Nano-Molecular Electronics - Kobe, Japan
Duration: 2002 Dec 102002 Dec 12

Keywords

  • Atomic force microscope
  • Langmuir-Blodgett films
  • Nanowire
  • TTF macrocycles

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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