Electrostatic charge carrier injection into the charge-ordered organic material α-(BEDT-TTF) 2I 3

Motoi Kimata, Takuma Ishihara, Hiroyuki Tajima

Research output: Contribution to journalReview articlepeer-review

3 Citations (Scopus)

Abstract

We have fabricated a field effect transistor structure using the charge-ordered (CO) organic material α-(BEDTTTF) 2I 3 to investigate the effects of electrostatic carrier injection. We have observed both n-type and bipolar behaviors in the CO state, whereas, previously, only n-type characteristics were reported. The present results indicate that the transfer characteristics for a negative gate voltage, i.e., hole transport characteristics, are highly dependent on the interface conditions between α-(BEDT-TTF) 2I 3 and the electrodes and/or gate insulator. In addition, the activation energy of the CO state is essentially independent of V SG. This result suggests the robustness of the CO state to electrostatic charge carrier injection.

Original languageEnglish
Article number073704
Journaljournal of the physical society of japan
Volume81
Issue number7
DOIs
Publication statusPublished - 2012 Jul
Externally publishedYes

Keywords

  • Charge order
  • Electrostatic charge carrier injection
  • Field effect transistor structure
  • Organic conductor
  • α-(BEDT-TTF) I

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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