Interface doping on organic thin film transistors exploring spin related phenomena

• Project/Area Number: 24655163
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Functional materials/Devices
• Research Institution: Hirosaki University (2013); Tohoku University (2012)
• Principal Investigator: FUJIKAWA Yasunori 弘前大学, 理工学研究科, 教授 (70312642)
• Co-Investigator(Renkei-kenkyūsha): SAITOH Eiji 東北大学, 金属材料研究所, 教授 (80338251)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 走査トンネル顕微鏡 / 光電子顕微鏡 / 有機薄膜 / 有機半導体

Research Abstract

An organic growth system with a photoelectron emission microscope has been attached to a four-probe scanning tunneling microscope, and an electron beam controller has been installed to the photoelectron emission microscope to improve the performance. Interface formation process between silicon oxide and organic material has been investigated in detail, finding some novel knowledge on nucleation processes, which is a key factor to improve the organic device property.

Research Products

• [Journal Article] Spin-relaxation modulation and spin-pumping control by transverse spin-wave spin current in Y3Fe5O12 (2013)
  • Author(s): Y. Kajiwara, K. Uchida, D. Kikuchi, T. An, Y. Fujikawa and E. Saitoh
  • Journal Title: Appl. Phys. Lett Volume: 103 Pages: 52404-52404
  • Peer Reviewed
• [Journal Article] Spin mixing conductance at a well-controlled platinum/yttrium iron garnet interface (2013)
  • Author(s): Z. Qiu, K. Ando, K. Uchida, Y. Kajiwara, R. Takahashi, H. Nakayama, T. An, Y Fujikawa and E. Saitoh
  • Journal Title: Appl. Phys. Lett Volume: 103 Pages: 92404-92404
  • Peer Reviewed
• [Journal Article] Real-time microscopy of reorientation driven nucleation and growth in pentacene thin films on silicon dioxide (2013)
  • Author(s): A. Al-Mahboob, Y. Fujikawa, T. Sakurai, and J. T. Sadowski
  • Journal Title: Adv. Funct. Mater Volume: 23 Pages: 2653-2660
  • Peer Reviewed
• [Journal Article] Real-Time Microscopy of Reorientation Driven Nucleation and Growth in Pentacene Thin Films on Silicon Dioxide (2013)
  • Author(s): Abdullah Al-Mahboob , Yasunori Fujikawa , Toshio Sakurai, Jerzy T. Sadowski
  • Journal Title: Adv. Funct. Mater. Volume: 印刷中 Issue: 20 Pages: 2653-2660
  • DOI: 10.1002/adfm.201203427
  • Peer Reviewed
• [Journal Article] Geometry dependence on inverse spin Hall effect induced by spin pumping in Ni81Fe19/Pt films (2012)
  • Author(s): H. Nakayama, K. Ando, K. Harii, T. Yoshino, R. Takahashi, Y. Kajiwara, K. Uchida, Y. Fujikawa, and E. Saitoh
  • Journal Title: Phys. Rev Volume: B85 Pages: 144408-144408
  • Peer Reviewed
• [Journal Article] Interface induced inverse spin Hall effect in bismuth/permalloy bilayer (2012)
  • Author(s): Dazhi Hou, Z. Qiu, K. Harii, Y. Kajiwara, K. Uchida, Y. Fujikawa, H. Nakayama, T. Yoshino, T. An, K. Ando, Xiaofeng Jin, and E. Saitoh
  • Journal Title: Appl. Phys. Lett Volume: 101 Pages: 42403-42403
  • Peer Reviewed
• [Journal Article] Electroresistance Effect in Gold Thin Film Induced by Ionic-Liquid-Gated Electric Double Layer (2012)
  • Author(s): Hiroyasu Nakayama, Jianting Ye, Takashi Ohtani, Yasunori Fujikawa, Kazuya Ando, Yoshihiro Iwasa, and Eiji Saitoh
  • Journal Title: Appl. Phys. Express Volume: 5 Pages: 23002-23002
  • NAID: 10030155599
  • Peer Reviewed
• [Journal Article] All-oxide system for spin pumping (2012)
  • Author(s): Z. Qiu, Y. Kajiwara, K. Ando, Y. Fujikawa, K. Uchida, T. Tashiro, K. Harii, T. Yoshino, and E. Saitoh
  • Journal Title: Appl. Phys. Lett Volume: 100 Pages: 22402-22402
  • Peer Reviewed
• [Journal Article] Spin pumping in a ferromagnetic/nonmagnetic/spin-sink trilayer film: spin current termination (2012)
  • Author(s): K. Harii, Z. Qiu, T. Iwashita, Y. Kajiwara, K. Uchida, K. Ando, T. An, Y. Fujikawa, and E. Saitoh
  • Journal Title: Key Engineering Materials Volume: 508 Pages: 266-270
  • Peer Reviewed
• [Presentation] Layer-by-Layer Transport Analysis on Bi Thin Film Phase (2013)
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: 9th International Symposium on Atomic Level Characterizations for New Materials and Devices 2013
  • Place of Presentation: Kailua-Kona, HI, USA
• [Presentation] Oscillation of conductivity in layer-by-layer growth of Bi thin film phase (2013)
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: American Physical Society March Meeting 2013
  • Place of Presentation: Baltimore, MD, USA
• [Presentation] In-Situ Conductivity Measurement on Layer-by Layer Growth of Bi Thin Film Phase
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: 20th International Colloquium on Scanning Probe Microscopy
  • Place of Presentation: Naha, Japan
• [Presentation] In-situ transport measurement of kinetically controlled Bi atomic layers
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: AVS 59th International Symposium & Exhibition
  • Place of Presentation: Tampa, FL, USA