Development of practical method for preparation of organic tin films with azimutal orientation by use of anisotropic interface

• Project/Area Number: 23560019
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: Chiba University
• Principal Investigator: OKUDAIRA Koji 千葉大学, 融合科学研究科(研究院), 准教授 (50202023)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
• Keywords: ナノ構造 / 分子配向 / 界面 / 異方性 / グラフォエピタキシャル / 有機分子薄膜 / 面内異方性 / 有機デバイス / 膜物性

Research Abstract

The conduction mechanism of organic devices depends on not only organic semiconductor but also the molecular orientation. In the research we prepare the micro-structured substrates which have groove structure with width of several micro-meter. We observed NEXAFS spectra of the PTFE (polytetrafluoroethylene) film on this micro-structured substrate. From the results of NEXAFS spectra we can show that PTFE molecules have uniaxial molecular orientation where the C-C axis of PTFE is parallel to the groove direction. It is found that pentacene thin films on the uniaxially oriented PTFE substrate have anisotropic orientation by angle-resolved ultraviolet photoelectron spectra. Furthermore, we found that highly anisotropic orientation is achieved by using the substrate with highly ordered groove structure with width of several hundreds nanometer.

Research Products

• [Journal Article] Quantitative Analysis of Anisotropic Molecular Orientation of Pentacene Thin Film [8B] (2012)
  • Author(s): K. K. Okudaira, T. Ishii and N. Ueno
  • Journal Title: UVSOR ACTIVITY REPORT2012 Pages: 89-89
  • URL: https://www.uvsor.ims.ac.jp/eng/activity/2012/
• [Journal Article] Anisotropic Molecular Orientation of Poly(tetrafluoroethylene): PTFE Thin Film on Microstructured Substrate (2012)
  • Author(s): K.Okudaira
  • Journal Title: Photon Factory Activity Report 2012 Volume: 30 Pages: 127-127
  • URL: http://pfwww.kek.jp/acr2012pdf/part_b.htm
• [Journal Article] ARUPS Study of Anisotropic Molecular Orientation of Pentacene Thin Film on Microstructured Substrate [8B] (2011)
  • Author(s): K. K. Okudaira, T. Ishii, K.Hotta and N. Ueno
  • Journal Title: UVSOR ACTIVITY REPORT2011 Pages: 74-74
  • URL: https://www.uvsor.ims.ac.jp/eng/activity/2011/
• [Presentation] 微細構造を持つ基板上のPTFE薄膜の配向と定量的評価 (2014)
  • Author(s): 奥平幸司、石井智大、上野信雄
  • Organizer: 第27回日本放射光学会年会放射光科学合同シンポジウム
  • Place of Presentation: 広島国際会議場
  • Year and Date: 2014-01-11
• [Presentation] 微細構造を持つ基板上の PTFE 薄膜の配向の定量的評価 (2014)
  • Author(s): 奥平幸司 、石井智大 、上野信雄
  • Organizer: 第27回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 広島国際会議場
• [Presentation] Control of Molecular Orientation of Poly(tetrafluoroethylene) Thin Film on Nanostructured Substrate (2013)
  • Author(s): Koji Okudaira
  • Organizer: 12th International Conference of Frontiers of Polymers and Advanced Materials
  • Place of Presentation: University of Auckland (Newzealand)
  • Year and Date: 2013-12-13
• [Presentation] ARUPSを用いた面内異方性配向を持つペンタセン薄膜の分子配向評価(12P053) (2013)
  • Author(s): 奥平幸司、石井智大、上野信雄
  • Organizer: 第26回日本放射光学会年会放射光科学合同シンポジウム
  • Place of Presentation: 名古屋大学
  • Year and Date: 2013-01-14
• [Presentation] Control of Molecular Orientation of Poly(tetrafluoroethylene) Thin Film on Nanostructured Substrate (2013)
  • Author(s): Koji Okudaira
  • Organizer: 12th International Conference on Frontiers of Polymers and Advanced Materials
  • Place of Presentation: UNIVERSITY OF AUCKLAND NEWZEALAND
• [Presentation] 表面微細構造を持つ基板上に作成したペンタセンの分子配向(13a-PB4-11) (2012)
  • Author(s): 石井智大,堀田訓宏,奥平幸司,上野信雄
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2012-09-14
• [Presentation] Anisotropic Molecular Orientation of Pentacene Thin Film on Microstructured Substrate(PO144) (2012)
  • Author(s): K. K. Okudaira , K. Hotta, T. Ishii, K. Mase, and N. Uen
  • Organizer: Vth International Conference on Molecular Materials
  • Place of Presentation: Barcelona
  • Year and Date: 2012-07-06
• [Presentation] 面内異方性をもつペンタセン薄膜の配向評価(6C002) (2012)
  • Author(s): 奥平幸司,堀田訓宏,間瀬一彦,上野信雄
  • Organizer: 第25回日本放射光学会年会
  • Place of Presentation: 鳥栖市市民文化会館
  • Year and Date: 2012-01-08
• [Presentation] 有機シラン自己組織化膜上に作製したペンタセン薄膜の分子配向(11a-H1-10) (2012)
  • Author(s): 金山典嗣，米澤恵一郎，奥平幸司，間瀬一彦，上野信雄
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] In-plane Orientation of Pentacene Thin film onto Uniaxially Oriented PTFE Film (P-S15-04) (2011)
  • Author(s): K. K. Okudiara , K. Hotta, K. Mase and N. Ueno
  • Place of Presentation: Kyoto
  • Year and Date: 2011-11-10
• [Presentation] 異方性をもつPTFE膜上のペンタセンの分子配向(1a-ZB5) (2011)
  • Author(s): 堀田訓宏,奥平幸司,間瀬一彦,西龍彦,上野信雄
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学
  • Year and Date: 2011-09-01
• [Presentation] In-plane Orientation of Pentacene Thin Film onto Uniaxially Oriented PTFE Film (P-S15-04) (2011)
  • Author(s): K. K. Okudiara , K. Hotta, K. Mase and N. Ueno
  • Organizer: The 15th International Conference on Thin Films (ICTF-15)
  • Place of Presentation: Kyoto
• [Presentation] 異方性をもつＰＴＦＥ膜上のペンタセンの分子配向(1a-ZB5) (2011)
  • Author(s): 堀田訓宏,奥平幸司,間瀬一彦,西龍彦,上野信雄
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学
• [Book] 薄膜の評価技術ハンドブック 執筆担当 第6節有機薄膜の形状・構造・組成評価第3項(2)有機薄膜における軟X線吸収分光法(ISBN 978-4-924728-67-7 C3050) (2013)
  • Author(s): 金原粲(監修)奥平幸司(共著)
  • Total Pages: 624
  • Publisher: テクノシステム
• [Book] 薄膜の評価技術ハンドブック (2013)
  • Author(s): 金原 粲(監修) 奥平幸司(共著 )
  • Total Pages: 620
  • Publisher: テクノシステム