Enhancement of molecular vibrational spectra from semiconductor/dielectric interfaces in organic electronic devices using surface electromagnetic waves

• Project/Area Number: 21750020
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Physical chemistry
• Research Institution: Kyoto University
• Principal Investigator: NAKAI Ikuyo Kyoto University, 大学院・理学研究科, 助教 (30446257)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 有機電界効果トランジスタ / 有機デバイス / 和周波発生振動分光 / 反射吸収分光 / 電場変調分光 / 界面構造 / レーザー顕微鏡

Research Abstract

Organic field effect transistors (OFETs) attract great attention as new-type electronic devices. It is important to reveal the mechanism of carrier injection and transport based on the structural change of the organic molecules at the semiconductor/dielectric interfaces in OFETs upon carrier injection. In this study, absorption spectra from the carriers in rubrene single-crystal devices were obtained by the method of charge modulation spectroscopy, which selectively gives absorbance difference caused by application of the gate voltage. The obtained spectra were different from that obtained in a previous study.

Research Products

• [Journal Article] Mechanism of enhancement in absorbance of vibrational bands of adsorbates at a metal mesh with subwavelength hole 1arrays (2011)
  • Author(s): Junji Etou, Daisuke Ino, Daisuke Furukawa, Kazuya Watanabe, Ikuyo F.Nakai, Yoshiyasu Matsumoto
  • Journal Title: Physical Chemistry Chemical Physics 13 Pages: 5817-5823
  • Peer Reviewed
• [Journal Article] Molecular structure and carrier distributions at semiconductor/dielectric interfaces in organic field-effect transistors studied with sum frequency generation microscopy (2009)
  • Author(s): Ikuyo F.Nakai, Masaaki Tachioka, Akito Ugawa, Tadashi Ueda, Kazuya Watanabe, Yoshiyasu Matsumoto
  • Journal Title: Applied Physics Letters 95((3pages)) Pages: 243304-243304
  • Peer Reviewed
• [Journal Article] Molecular structure and carrier distributions at semiconductor/dielectric interfaces in organic field-effect transistors studied with sum frequency generation microscopy (2009)
  • Author(s): I.F.Nakai, M.Tachioka, A.Ugawa, T.Ueda, K.Watanabe, Y.Matsumoto
  • Journal Title: Applied Physics Letters 95
  • Peer Reviewed
• [Presentation] ルブレン単結晶を用いた有機電界効果トランジスタにおける界面修飾効果 (2011)
  • Author(s): 宮田潔志, 中井郁代, 渡邊一也, 石野雄太, 三輪一元, 植村隆文, 竹谷純一, 松本吉泰
  • Organizer: 日本化学会第91春季年会
  • Place of Presentation: 神奈川大学
  • Year and Date: 2011-03-26
• [Presentation] 電場変調分光を用いた有機電界効果トランジスタにおける界面修飾効果の解明 (2010)
  • Author(s): 宮田潔志, 中井郁代, 渡邊一也, 石野雄太, 三輪一元, 植村隆文, 竹谷純一, 松本吉泰
  • Organizer: 2010年度関西薄膜表面物理セミナー
  • Place of Presentation: 大阪
  • Year and Date: 2010-11-27
• [Presentation] 波長以下の孔を持つ金属メッシュにおける吸着分子の異常赤外吸収機構 (2010)
  • Author(s): 江藤淳二, 猪野大輔, 渡邊一也, 中井郁代, 古川大祐, 松本吉泰
  • Organizer: 第4回分子科学討論会
  • Place of Presentation: 大阪
  • Year and Date: 2010-09-15
• [Presentation] Observation of semiconductor/dielectric interface of organic field effect transistors by sum frequency generation microscopy (2009)
  • Author(s): 中井郁代, 立岡正明, 宮田潔志, 上田正, 渡邊一也, 松本吉泰
  • Organizer: ASOMEA-V
  • Place of Presentation: ウプサラ(スウェーデン)
  • Year and Date: 2009-10-01
• [Presentation] 有機電界効果トランジスタの界面における和周波発生増強機構とそれを用いた電荷分布の計測 (2009)
  • Author(s): 中井郁代, 立岡正明, 宮田潔志, 上田正, 渡邊一也, 松本吉泰
  • Organizer: 第3回分子科学討論会
  • Place of Presentation: 名古屋
  • Year and Date: 2009-09-21
• [Presentation] 有機電界効果トランジスタの界面における 和周波発生増強機構と それを用いた電荷分布の計測 (2009)
  • Author(s): 中井郁代, 立岡正明, 宮田潔志, 上田正, 渡邊一也, 松本吉泰
  • Organizer: 第3回分子科学討論会
  • Place of Presentation: 名古屋大学東山キャンパス
  • Year and Date: 2009-09-21