Surface Conductivity of Diamond as a Function of Nitrogen Doping

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Ristein J, Ley L
Zeitschrift: Physica Status Solidi A-Applications and Materials Science
Verlag: John Wiley & Sons, Ltd / Academic Verlag GMBH
Jahr der Veröffentlichung: 2001
Band: 186
Seitenbereich: 249
ISSN: 0031-8965


Abstract

The surface conductivity of diamond has recently attracted a lot of interest since a number of electronic applications proposed for diamond are based on this effect. Nevertheless, its microscopic origin is still a matter of debate. We describe in the following experiments in which the impact of the balk defect concentration of diamond on the surface conductivity is investigated. The experiments show that surface conductivity is suppressed in the presence of donor-like nitrogen defects although the surfaces are clearly hydrogen (or deuterium) terminated. We suggest compensation of the surface or surface near acceptors to be the reason for this suppression. A quantitative discussion shows that the doping capability of the surface acceptors is exhausted at lateral concentrations of about 3 × 1013 cm-2.


FAU-Autoren / FAU-Herausgeber

Ley, Lothar Prof. Dr.
Naturwissenschaftliche Fakultät
Ristein, Jürgen apl. Prof. Dr.
Lehrstuhl für Laserphysik

Zuletzt aktualisiert 2018-09-08 um 06:08