Original Paper

Nanoscale modification of electrical properties of hydrogenated boron-doped diamond

  1. I. Andrienko1,*,
  2. S. Prawer1,
  3. R. Kalish2

Article first published online: 19 MAR 2004

DOI: 10.1002/pssa.200306793

Issue

physica status solidi (a)

physica status solidi (a)

Volume 201, Issue 7, pages 1537–1542, May 2004

Additional Information

How to Cite

Andrienko, I., Prawer, S. and Kalish, R. (2004), Nanoscale modification of electrical properties of hydrogenated boron-doped diamond. physica status solidi (a), 201: 1537–1542. doi: 10.1002/pssa.200306793

Author Information

  1. 1

    School of Physics, University of Melbourne, Parkville, Victoria 3010 Australia

  2. 2

    Physics Department and Solid State Institute, Technion, Haifa 32000 Israel

*Phone: + 61 3 8344 4012, Fax: + 61 3 9347 4783

Publication History

  1. Issue published online: 23 MAR 2004
  2. Article first published online: 19 MAR 2004
  3. Manuscript Accepted: 13 FEB 2004
  4. Manuscript Revised: 6 FEB 2004
  5. Manuscript Received: 28 NOV 2003

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Keywords:

  • 72.80.Cw;
  • 73.40.Gk;
  • 73.61.Cw;
  • 73.63.Bd;
  • 79.70.+q

Abstract

Local modification at the nanometre scale of the electrical (I–V) and electron field emission (FE) properties of boron-doped hydrogenated diamond are reported. These are achieved by the application of a voltage pulse between the hydrogenated diamond surface and the tip of a scanning tunnelling microscope under UHV conditions. The area affected by the voltage pulse (2–4 nm in diameter) shows a drastic reduction in tunnelling current (by 2 orders of magnitude) and a concomitant decrease in field emission. The tunnelling current and field emission properties gradually recover on a time scale of about 1 hour under UHV conditions. These surface modifications are thought to be due to hydrogen removal that is caused by the voltage pulse. The observed recovery appears to be due to H replenishment which restores the surface conductivity and negative electron affinity of the surface. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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