Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3448
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dc.contributor.authorNESLADEK, Milos-
dc.contributor.authorVanecek, M-
dc.contributor.authorSTALS, Lambert-
dc.date.accessioned2007-11-28T14:09:17Z-
dc.date.available2007-11-28T14:09:17Z-
dc.date.issued1996-
dc.identifier.citationPHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 154(1). p. 283-303-
dc.identifier.issn0031-8965-
dc.identifier.urihttp://hdl.handle.net/1942/3448-
dc.description.abstractPhotothermal deflection spectroscopy (PDS) was used to study defect-induced optical absorption in CVD diamond films. PDS has shown very high sensitivity, allowing to measure absorbance values down to 10(-5) level. Moreover, PDS is significantly less sensitive to elastic light scattering than optical transmission measurements. Based on PDS data, it is shown that undoped polycrystalline and homoepitaxial diamond Films exhibit a very characteristic subgap absorption, which is ascribed to electronic transitions between pi --> pi* states, appearing in the gap and due to the presence of amorphous carbon. The incorporation of N (and H and O) atoms in diamond films was studied. The optical absorption of N-doped films is compared with the optical absorption due to single substitutional N in Ib synthetic diamond. The incorporation of Li by in-situ doping with organo-metallic compounds during Film growth is discussed and the observed transitions are tentatively explained. Finally, a mathematical model for the characteristic subgap absorption is described and the experimentally obtained optical absorption coefficients are deconvoluted to obtain parameters for the description of the density of gap states.-
dc.language.isoen-
dc.publisherAKADEMIE VERLAG GMBH-
dc.titleDefect-induced optical absorption in CVD diamond films-
dc.typeJournal Contribution-
dc.identifier.epage303-
dc.identifier.issue1-
dc.identifier.spage283-
dc.identifier.volume154-
local.format.pages21-
dc.description.notesACAD SCI CZECH REPUBL,INST PHYS,CR-16200 PRAGUE,CZECH REPUBLIC.Nesladek, M, LIMBURGS UNIV CENTRUM,INST MAT RES,DIV MAT PHYS,WETENSCHAPSPARK 1,B-3590 DIEPENBEEK,BELGIUM.-
local.type.refereedRefereed-
local.type.specifiedArticle-
dc.bibliographicCitation.oldjcatA1-
dc.identifier.isiA1996UE16100020-
item.contributorNESLADEK, Milos-
item.contributorVanecek, M-
item.contributorSTALS, Lambert-
item.accessRightsClosed Access-
item.fullcitationNESLADEK, Milos; Vanecek, M & STALS, Lambert (1996) Defect-induced optical absorption in CVD diamond films. In: PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 154(1). p. 283-303.-
item.fulltextNo Fulltext-
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