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Highly Ordered Methanofullerene Nanotube Array: Fabrication and Implications for Room Temperature Organic Spintronics

  • Author / Creator
    Starko-Bowes, Ryan C. K.
  • Organic semiconductors have come to the forefront of research in physics, chemistry and electronics due to their impressive properties and low cost of device production. Presented here is a novel centrifuge assisted organic nanowire growth technique and its application in the fabrication of methanofullerene ([6,6]-phenyl-C61-butyric acid methyl ester (PCBM) nanotube array spin valves. This growth technique enables the fabrication of a wide range of potential organic nanowire devices for applications in photonics, optoelectronics and spintronics. In particular, spin valves of PCBM nanotube arrays fabricated using this technique demonstrate encouraging spin transport properties. In spite of a long channel length (~325 nm), these devices exhibit an inverse spin valve effect which persists even at room temperature. The spin relaxation length in these devices is estimated to be ~50 nm at room temperature which is the largest room temperature spin relaxation length in organic nanowire systems reported to date, including carbon nanotubes.

  • Subjects / Keywords
  • Graduation date
    2013-11
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R3XK84Z67
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Electrical and Computer Engineering
  • Specialization
    • Solid State Electronics
  • Supervisor / co-supervisor and their department(s)
    • Dr. Sandipan Pramanik (Electrical and Computer Engineering)
  • Examining committee members and their departments
    • Dr. Zubin Jacob (Electrical and Computer Engineering)
    • Dr. Mani Vaidyanathan (Electrical and Computer Engineering)