Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2507
Title: Influence of annealing on the electronic properties of chemical vapor deposited diamond films studied by high vacuum scanning tunneling microscopy and spectroscopy
Authors: Cannaerts, M
NESLADEK, Milos 
HAENEN, Ken 
DE SCHEPPER, Luc 
STALS, Mark 
Van Haesendonck, C
Issue Date: 2002
Publisher: ELSEVIER SCIENCE SA
Source: DIAMOND AND RELATED MATERIALS, 11(2). p. 212-217
Abstract: Scanning tunneling spectroscopy (STS) under high vacuum conditions (2x10(-8) mbar), combined with high-resolution topographical imaging with the scanning tunneling microscope (STM), enabled us to investigate local variations in the electronic structure of the surface of chemical vapor deposited diamond films. We studied the variations in the current-voltage I(V) characteristics of hydrogen terminated films when varying the distance between bp and surface. Our STS measurements confirm the surface p-type conductance. We also studied the influence of changes in the hydrogen termination by annealing under high vacuum conditions. Annealing at relatively low temperatures is shown to dramatically influence the local I(V) characteristics measured with STM. confirming that hydrogen termination alone is not sufficient for explaining the enhanced surface conductance. (C) 2002 Elsevier Science B.V. All rights reserved.
Notes: Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium. Limburgs Univ Ctr, Mat Res Inst, B-3590 Diepenbeek, Belgium.Cannaerts, M, Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, Celestijnenlaan 200 D, B-3001 Louvain, Belgium.
Keywords: electrical conductivity; hydrogen; scanning tunneling microscopy; spectroscopy
Document URI: http://hdl.handle.net/1942/2507
ISSN: 0925-9635
e-ISSN: 1879-0062
DOI: 10.1016/S0925-9635(01)00645-8
ISI #: 000174039500010
Category: A1
Type: Journal Contribution
Validations: ecoom 2003
Appears in Collections:Research publications

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