Development of Synthetic Methods for Precise Fabrication of Single Molecule Multi-tunnel-junctions

• Project/Area Number: 19510134
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Microdevices/Nanodevices
• Research Institution: Institute for Molecular Science
• Principal Investigator: TANAKA Shoji Institute for Molecular Science, 分子スケールナノサイエンスセンター, 助教授 (20192635)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2007: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 単量子デバイス / 分子スケールエレクトロニクス / 単電子トンネルデバイス / オリゴチオフェン / 単分子素子 / 分子電線 / 巨大分子

Research Abstract

単一の大型π共役分子骨格内に、多重トンネル接合系を自在に構築する技術を確立するため、一連の可溶性・多機能型分子ブロック群を開発した。これらを用いた逐次合成プロセスにより、110nm 長までの絶縁被覆付き分子電線、20-30nm 長までの量子井戸付き分子電線や二重トンネル接合系、多端子系を構築した。これら大型分子系の単一分子伝導特性や、基盤上への精密配置法について、ナノ計測研究グループと系統的に検討を進めた。

Research Products

• [Journal Article] Electrical Resistance of Long Oligothiophene Molecules (2009)
  • Author(s): R. Yamada, H.Kumazawa, S. Tanaka, and H. Tada
  • Journal Title: Appl. Phys. Express 2
  • Peer Reviewed
• [Journal Article] Electrical Resistance of Long Oligothiophene Molecules (2009)
  • Author(s): Ryo Yamada, et al
  • Journal Title: Appl. Phys. Express 2
  • Peer Reviewed
• [Journal Article] Electrical Conductance of Oligothiophene Molecular Wires (2008)
  • Author(s): R. Yamada, H. Kumazawa, T.Noutoshi, S. Tanaka, and H. Tada
  • Journal Title: Nano Lett. 8 Pages: 1237-1240
  • Peer Reviewed
• [Journal Article] Isomeric Discriminating and Indiscriminating Assemble of Adsorbed Oligothiophenes on Ag(110) (2008)
  • Author(s): T. Yokoyama, S. Kurara, and S. Tanaka
  • Journal Title: J. Phys. Chem. C 112 Pages: 12590-12593
  • Peer Reviewed
• [Journal Article] Direct Conformational Analysis of a 10 nm Long Oligothiophene Wire (2008)
  • Author(s): F. Nishiyama, K.Ogawa, S. Tanaka, and T. Yokoyama
  • Journal Title: J. Phys. Chem. B 112 Pages: 5272-5275
  • Peer Reviewed
• [Journal Article] Isomeric Discriminating and Indiscriminating Assembly of Adsorbed Oligothiophenes on Ag(110) (2008)
  • Author(s): Takashi Yokoyama, et al
  • Journal Title: Journal of Physical Chemistry C 112 Pages: 12590-12593
  • Peer Reviewed
• [Journal Article] Electrical Conductance of Oligothiophene Molecular Wires (2008)
  • Author(s): Ryo Yamada, et al
  • Journal Title: Nano Letter 8 Pages: 1237-1240
  • Peer Reviewed
• [Journal Article] "Direct conformational analysis of a 10 nm long oligothiophene wire"
  • Author(s): Fumitaka Nishiyama, et. al.
  • Journal Title: Journal of Physical Chemistry B (In press)
  • Peer Reviewed
• [Presentation] 機能集積化巨大分子の逐次合成のための汎用構築ブロックの開発 (2008)
  • Author(s): 田中 彰治
  • Organizer: 基礎有機化学討論会
  • Place of Presentation: 大阪
  • Year and Date: 2008-10-03
• [Presentation] 長鎖オリゴチオフェン分子ワイヤーの電気伝導度測定 (2008)
  • Author(s): 山田 亮、熊澤 宏晃、渡邊 大智、田中 彰治、夛田 博一
  • Organizer: 第55回応用物理学会関連連合講演会
  • Place of Presentation: 船橋
  • Year and Date: 2008-03-27
• [Presentation] Conductance of SingleOligothiophene Molecules Measured by the STM Break Junction Method (2007)
  • Author(s): R. Yamada, H. Kumazawa, S. Tanaka, and H. Tada
  • Organizer: 15th International Colloquium on Scanning Probe Microscopy
  • Place of Presentation: 熱川
  • Year and Date: 2007-12-06
• [Presentation] "Development of Building Blocks for Molecular Single Electron Switching(MOSES)Devices" (2007)
  • Author(s): Shoji Tanaka
  • Organizer: CREST workshop on Moleculaz Nano-Electronic Devices
  • Place of Presentation: 京都
  • Year and Date: 2007-11-20
• [Presentation] Development of Building Blocks for Molecular Single Electron Switching (MOSES) Devices (2007)
  • Author(s): Shoji Tanaka
  • Organizer: CREST workshop on Molecular Nano-Electronic Devices
  • Place of Presentation: 京都
  • Year and Date: 2007-11-19
• [Presentation] Conductance of Single Oligothiophene Molecules (2007)
  • Author(s): R. Yamada, H. Kumazawa, S. Tanaka, and H. Tada
  • Organizer: CREST workshop on Molecular Nano-Electronic Devices
  • Place of Presentation: 京都
  • Year and Date: 2007-11-19
• [Presentation] ELECTRICAL CONDUCTANCE OF OLIGO-THIOPHENE MOLECULES -Effect of potential well in a molecular wire (2007)
  • Author(s): H. Kumazawa, R. Yamada, S. Tanaka, and H. Tada
  • Organizer: CREST workshop on Molecular Nano-Electronic Devices
  • Place of Presentation: 京都
  • Year and Date: 2007-11-19
• [Presentation] ナノ構造体の逐次精密構築のための 10nm 超級大型素材分子群の開発 (2007)
  • Author(s): 田中 彰治
  • Organizer: 第 68 回応用物理学会学術講演会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-06
• [Presentation] Studies on electrical conductance of oligothiophene molecules by a break junction method (2007)
  • Author(s): R. Yamada, D. Watanabe, T. Noutoshi, S. Tanaka, and H. Tada
  • Organizer: The international workshop on electron transport through a linked molecule in nano-scale
  • Place of Presentation: 東京
  • Year and Date: 2007-08-18
• [Presentation] Study on electrical properties of single molecules by a break junction method (2007)
  • Author(s): D. Watanabe, T. Noutoshi, R. Yamada, S. Tanaka, and H. Tada
  • Organizer: A3 Foresight Program Meeting and Summer School
  • Place of Presentation: Beijing, China
  • Year and Date: 2007-07-26
• [Presentation] ELECTRICAL CONDUCTANCE OF OLIGO-THIOPHENE MOLECULAR WIRES MEASURED BY AN STM BREAK-JUNCTION METHOD (2007)
  • Author(s): R. Yamada, T. Noutoshi, S. Tanaka, and H. Toda
  • Organizer: International Conference on Electrified Interface 2007
  • Place of Presentation: 札幌
  • Year and Date: 2007-06-25
• [Presentation] CONDUCTANCE OF OLIGOTHIOPHENE MOLECULES (2007)
  • Author(s): R. Yamada, T.Noutoshi, S. Tanaka, and H. Tada
  • Organizer: Joint symposium on fundamental aspects of nanostructured materials and electrocatalysis 2007
  • Place of Presentation: 札幌
  • Year and Date: 2007-06-23