Three-dimensional mapping of electrical transport characteristics in organic semiconductors using independently-driven four-probe method

• Project/Area Number: 21760024
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The University of Tokyo
• Principal Investigator: YOSHIMOTO Shinya 東京大学, 物性研究所, 助教 (90507831)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 表面・界面物性 / 有機薄膜 / 有機半導体 / 電気伝導 / 探針 / 4探針

Research Abstract

We have developed an independently driven four-probe method to investigate field-effect transistor (FET) characteristics in organic semiconductors. The independently driven four-probe method enables us to investigate local FET characteristics in organic semiconductors without damaging the samples. We demonstrated four-probe FET measurement on a pentacene thin film, and we have succeeded to obtain single grain mobility in the polycrystalline pentacene film.

Research Products

• [Journal Article] Independently driven four-probe method for local electrical characteristics in organic thin-film transistors under controlled channel potential (2011)
  • Author(s): S. Yoshimoto, T. Tsutsui, K. Mukai, and J. Yoshinobu
  • Journal Title: Review of Scientific Instruments Volume: 82
  • Peer Reviewed
• [Journal Article] Independently driven four-probe method for local electrical characteristics in organic thin-film transistors under controlled channel potential (2011)
  • Author(s): S.Yoshimoto, T.Tsutsui, K.Mukai, J.Yoshinobu
  • Journal Title: Review of Scientific Instruments Volume: 82
  • Peer Reviewed
• [Presentation] Independently driven four-probe measurement in pentacene organic thin-film transistors under controlled channel potential (2011)
  • Author(s): S. Yoshimoto, T. Tsutsui, K. Mukai, and J. Yoshinobu
  • Organizer: The 6th International Symposium on Surface Science and Nanotechnology (ISSS-6)
  • Place of Presentation: 東京都江戸川区船堀
  • Year and Date: 2011-12-12
• [Presentation] 独立駆動型4探針装置によるペンタセン薄膜のトランジスタ特性測定 (2011)
  • Author(s): 吉本真也, 亀島一輝, 向井孝三, 吉信淳
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学(震災による中止のため、大会用資料公開サイトで平成23年5月6日～8月31日の期間資料公開)
  • Year and Date: 2011-03-28
• [Presentation] 独立駆動型4探針装置によるペンタセン薄膜のトランジスタ特性測定 (2010)
  • Author(s): 吉本真也, 亀島一輝, 向井孝三, 吉信淳
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大(資料公開は平成23年5月6日～8月31日)(中止のため)(大会用資料公開サイトで発表)
  • Year and Date: 2010-03-28