Investigation of hydrogenated CVD diamond films by photo-thermal ionization spectroscopy

Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/1435

Title:	Investigation of hydrogenated CVD diamond films by photo-thermal ionization spectroscopy
Authors:	Hikavyy, A. Clauws, P. DEFERME, Wim BOGDAN, Anna HAENEN, Ken NESLADEK, Milos
Issue Date:	2006
Publisher:	Elsevier
Source:	DIAMOND AND RELATED MATERIALS, 15(4-8). p. 682-686
Abstract:	Different hydrogenated CVD diamond films as well as bulk IIb and IIa diamonds were investigated by means of photo-thermal ionization spectroscopy. All samples show a new photocurrent signal at temperatures lower than 120–20 K depending on the sample with a threshold around 100 meV what suggests a presence of shallow levels on the hydrogenated diamond surface. The photocurrent spectrum due to these shallow levels consists of features similar to the two-phonon absorption in diamond. Influence of annealing in air on the photocurrent behavior was investigated as well.
Keywords:	Diamond; Hydrogenation; Shallow impurities; Photocurrent measurements
Document URI:	http://hdl.handle.net/1942/1435
ISSN:	0925-9635
e-ISSN:	1879-0062
DOI:	10.1016/j.diamond.2005.11.020
ISI #:	000239157000047
Category:	A1
Type:	Journal Contribution
Validations:	ecoom 2007
Appears in Collections:	Research publications

Check