Electron Spin Resonance Observations of Field-Induced Polarons in Regioregular Poly(3-octylthiophene) Metal-Insulator-Semiconductor Diode Structures(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Electron spin resonance (ESR) measurements are performed on field-induced carriers in regioregular poly(3-octylthiophene) (RR-P3OT) using metal-insulator-semiconductor (MIS) diode structures with RR-P3OT and Al_2O_3 as the active semiconductor and insulating layers, respectively. Clear ESR signals (g 〜 2.002) are observed, which increase as the absolute value of the gate bias increases in the accumulation mode. The ESR signal is consistent with that of the photogenerated positive polarons in RR-P3OT detected by the light-induced ESR of RR-P3OT/C_<60> composites, providing direct evidence that the field-induced carriers are polarons. Moreover, the molecular orientation of RR-P3OT's in the diode structures, which is consistent with the self-organized lamellae reported, is confirmed by the anisotropy of the ESR signal.

• 社団法人日本物理学会の論文
• 2004-07-15

著者

• ITO Hiroshi

  Department of Internal Medicine, Division of Cardiovascular Medicine, Akita University Faculty of Me

• Sugiura K

  Department Of Chemistry Graduate School Of Science Tokyo Metropolitan University

• KURODA Shin-ichi

  Department of Applied Physics,Graduate School of Engineering,Nagoya University

• KURODA Shin-ichi

  Electrotechnical Laboratory

• Kuroda Shin‐ichi

  Department Of Applied Physics Nagoya University

• Kuroda Shin-ichi

  Department Of Applied Physics Nagoya University

• SUGIURA Ken-ichi

  Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University

• MARUMOTO Kazuhiro

  Department of Applied Physics, Graduate School of Engineering, Nagoya University

• Ito Hiroshi

  Department Of Cardiovascular And Respiratory Medicine Akita University Graduate School Of Medicine

• Kuroda S

  Department Of Chemistry Graduate School Of Science Tokyo Metropolitan University

• MURAMATSU Yasuhito

  Department of Applied Physics, Nagoya University

• UKAI Sota

  Department of Applied Physics, Nagoya University

• Ukai S

  Department Of Applied Physics Nagoya University

• Marumoto K

  Department Of Applied Physics Nagoya University

• Marumoto Kazuhiro

  Department Of Applied Physics Nagoya University

• Ito Hiroshi

  Department Neurosurgery Tokyo Medical College

• Muramatsu Yasuhito

  Department Of Applied Physics Nagoya University

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