Structure and electronic properties of bis[bis(methylthio)tetrathiafulvalenedithiolate]-gold(III) Langmuir-Blodgett films

Toshiyuki Takahashi, Ken ichi Sakai, Toru Yumoto, Tomoyuki Akutagawa, Tatsuo Hasegawa, Takayoshi Nakamura

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)


Langmuir-Blodgett films of [Au(tmdt)2] [tmdt2- = bis(methylthio)tetrathiafulvalenedithiolate] without alkyl chains are described. We synthesized tridecylmethylammonium salt of complex 1 as a film forming material so that the alkyl chains of the salt make the complex soluble in solution and help the formation of monolayers. The complex 1 formed stable monolayers at the air-water interface, which were successfully transferred to solid substrates by the horizontal lifting method. The oxidation of the complex to the neutral form occurred during the film forming process, which was indicated by the IR measurements. The alkylammonium part was removed by methanol and the single component LB films of neutral [Au(tmdt)2] were obtained. The LB films showed semiconducting behavior after electrochemical doping.

Original languageEnglish
Pages (from-to)7-11
Number of pages5
JournalThin Solid Films
Issue number1-2
Publication statusPublished - 2001 Aug 1
Externally publishedYes
Event4th International Conference on Nano-Molecular Electronics - Kobe, Japan
Duration: 2000 Dec 52000 Dec 7


  • Band structure
  • Langmuir-Blodgett films
  • Organic conductors

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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