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)


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
Issue number7
Publication statusPublished - 2012 Jul
Externally publishedYes


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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Electrostatic charge carrier injection into the charge-ordered organic material α-(BEDT-TTF) <sub>2</sub>I <sub>3</sub>'. Together they form a unique fingerprint.

Cite this