Electrical properties of graphite/p-type homoepitaxial diamond contact

Y. G. Chen*, M. Hasegawa, S. Yamanaka, H. Okushi, Naoto Kobayashi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We have studied the electrical properties of the graphitic electrodes formed in boron-doped homoepitaxial diamond films in order to make reliable ohmic contacts in diamond-based electronic devices. Boron-doped homoepitaxial diamond films were synthesized by gas-phase doping of boron during the chemical vapor deposition growth. The graphitization of diamond by Ar ion implantation was utilized for the graphitic electrodes. The electrical properties of graphite/diamond contacts were investigated by using the current-voltage measurement. The specific contact resistance was characterized by applying circular transmission line model (CTLM) extrapolation method and determined to be 1.18 Ω· cm2.

Original languageEnglish
Pages (from-to)945-948
Number of pages4
JournalMaterials Science Forum
Issue number2
Publication statusPublished - 2002
Externally publishedYes


  • Diamond Applications
  • Diamond Properties
  • Ohmic Contacts
  • Specific Contact Resistance
  • Transmission Line Model

ASJC Scopus subject areas

  • Materials Science(all)


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