TY - JOUR
T1 - Electrostatic charge carrier injection into the charge-ordered organic material α-(BEDT-TTF) 2I 3
AU - Kimata, Motoi
AU - Ishihara, Takuma
AU - Tajima, Hiroyuki
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/7
Y1 - 2012/7
N2 - 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.
AB - 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.
KW - Charge order
KW - Electrostatic charge carrier injection
KW - Field effect transistor structure
KW - Organic conductor
KW - α-(BEDT-TTF) I
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U2 - 10.1143/JPSJ.81.073704
DO - 10.1143/JPSJ.81.073704
M3 - Review article
AN - SCOPUS:84863600781
VL - 81
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 7
M1 - 073704
ER -