English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/207844
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorPardanaud, Cedrices_ES
dc.contributor.authorCartry, Gilleses_ES
dc.contributor.authorLajaunie, Luces_ES
dc.contributor.authorArenal, Raules_ES
dc.contributor.authorBuijnsters, Josephus Gerarduses_ES
dc.identifier.citationC 5(4): 79 (2019)es_ES
dc.descriptionThis article belongs to the Special Issue Characterization of Disorder in Carbons.es_ES
dc.description.abstractMultiwavelength Raman spectroscopy (325, 514, 633 nm) was used to analyze three different kinds of samples containing sp2 and sp3 carbons: chemical vapor deposited diamond films of varying microstructure, a plasma-enhanced chemical vapor deposited hydrogenated amorphous carbon film heated at 500 °C and highly oriented pyrolytic graphite exposed to a radio-frequent deuterium plasma. We found evidence that the lower part of the phonon density of states (PDOS) spectral region (300–900 cm−1) that rises when defects are introduced in crystals can give more information on the structure than expected. For example, the height of the PDOS, taken at 400 cm−1 and compared to the height of the G band, depends on the sp2 content, estimated by electron energy-loss spectroscopy. This ratio measured with 633 nm laser is more intense than with 514 nm laser. It is also correlated for diamond to the relative intensity ratio between the diamond band at 1332 cm−1 and the G band at ≈1500–1600 cm−1 when using 325 nm laser. Moreover, it is found that the shape of the PDOS of the exposed graphite samples is different when changing the wavelength of the laser used, giving evidence of a double resonance mechanism origin with the rise of the associated D3, D4 and D5 bands, which is not the case for a-C:H samples.es_ES
dc.description.sponsorshipR.A. gratefully acknowledges the support from the Spanish Ministerio de Economia y Competitividad (MAT2016-79776-P) and from the European Union H2020 program “ESTEEM3” (823717).".es_ES
dc.publisherMultidisciplinary Digital Publishing Institutees_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectRaman microscopyes_ES
dc.subjectPhonon density of stateses_ES
dc.subjectDouble resonance mechanismes_ES
dc.subjectAmorphous carbones_ES
dc.subjectImplanted graphitees_ES
dc.titleInvestigating the possible origin of Raman bands in defective sp2/sp3 carbons below 900 cm−1: Phonon density of states or double resonance mechanism at play?es_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidPardanaud, Cedric [0000-0001-8974-4396]es_ES
dc.contributor.orcidLajaunie, Luc [0000-0001-6152-6784]es_ES
dc.contributor.orcidBuijnsters, Josephus Gerardus [0000-0002-5440-8154]es_ES
Appears in Collections:(ICMA) Artículos
Files in This Item:
File Description SizeFormat 
ivestigaplay.pdf1,29 MBAdobe PDFThumbnail
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.