Applied Physics A

, Volume 112, Issue 4, pp 927–931 | Cite as

Electrical properties of microcrystalline Sc3N@C80 fullerene

  • Tsuyoshi Takase
  • Masamichi Sakaino
  • Kenta Kirimoto
  • Yong Sun
Article
First Online:
Received:
Accepted:

Abstract

The electrical properties of microcrystalline Sc3N@C80 fullerene with fcc structure are studied by measuring both d.c. conductivity temperature dependence and a.c. impedance. Below 450 K the Sc3N@C80 sample has an energy band gap of 1.71 eV, which does not depend on the strength of the applied electric field. But when the temperature is above 450 K, a phase transition which results in a small band gap of 1.22 eV occurs under electric field strengths larger than 1 kV/cm. We also found from Cole–Cole plots of a.c. impedance that the contact resistance at the Au/Sc3N@C80 interface is less than that at the Au/C60 interface.

Keywords

Fullerene Bias Voltage Contact Resistance Electric Field Strength Pellet Sample 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

Acknowledgements

This work was partially supported by project No. 15-B01, Program of Research for the Promotion of Technological Seeds, Japan Science and Technology Agency. The work was also partially supported by Grant-in-Aid for Exploratory Research No: 23651115, Japan Society for the Promotion of Science (JSPS).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Tsuyoshi Takase
    • 1
    • 4
  • Masamichi Sakaino
    • 2
    • 4
  • Kenta Kirimoto
    • 3
  • Yong Sun
    • 4
  1. 1.The School of International Languages and CulturesBaiko Gakuin UniversityShimonosekiJapan
  2. 2.Department of Vehicle Production EngineeringNissan Motor Co., Ltd.Atsugi-cityJapan
  3. 3.Department of Electrical and Electronic EngineeringKitakyushu National College of TechnologyKitakyushuJapan
  4. 4.Department of Applied Science for Integrated System EngineeringKyushu Institute of TechnologyKitakyushuJapan

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