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|Title:||Investigation of hydrogenated CVD diamond films by photo-thermal ionization spectroscopy||Authors:||Hikavyy, A.
|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|
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