Skip to main navigation Skip to search Skip to main content

Electrical properties of Be-implanted polycrystalline cubic boron nitride films

  • B. He
  • , W. J. Zhang
  • , Y. S. Zou
  • , Y. M. Chong
  • , Q. Ye
  • , A. L. Ji
  • , Y. Yang
  • , I. Bello
  • , S. T. Lee
  • , G. H. Chen

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

P -type conductivity of polycrystalline cubic boron nitride (cBN) films was achieved by implantation of beryllium ions. The effects of implantation doses and annealing on the phase composition and electrical properties of cBN films were studied. A reduction in resistivity by seven orders of magnitude was observed. Hall measurement revealed a corresponding hole concentration of 6.1× 1018 cm-3 and mobility of 3 cm2 V s. The activation energy was estimated to be 0.20±0.02 eV from the temperature dependence of resistance. The electrical properties of Be-implanted films are comparable to that of Be-doped cBN single crystals synthesized by high-pressure and high-temperature method. © 2008 American Institute of Physics.
Original languageEnglish
Article number102108
JournalApplied Physics Letters
Volume92
Issue number10
DOIs
Publication statusPublished - 2008

Fingerprint

Dive into the research topics of 'Electrical properties of Be-implanted polycrystalline cubic boron nitride films'. Together they form a unique fingerprint.

Cite this