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Mass spectrometric investigation of the roles of several chemical intermediates in diamond synthesis

hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorFAN, Lisha S.
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorZHOU, Yun Shen
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorWANG, Mengxiao
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorGAO, Yang
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorXIONG, Wei
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorLIU, Lei
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorLU, Yao
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSILVAIN, Jean-François
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorLU, Yong Feng
dc.date.issued2015
dc.description.abstractEnMass spectrometric studies were performed to investigate several key chemical intermediates and identify their roles in diamond synthesis in a C2H4/C2H2/O2 combustion-flame chemical vapour deposition process. The diamond deposition rate and diamond quality were correlated with the growth parameters, the distance from the substrate to the torch nozzle and the oxygen–fuel ratio. The dependences of the intermediate concentrations as functions of the distance to the torch nozzle and oxygen–fuel ratio were established. It was suggested that an appropriate balance between high hydrocarbon intermediates (C2H2+, C3H3+, C3H4+, C4H2+, C4H3+) and carbon etchants (O−, OH−, and H3O+) was required to achieve effective diamond deposition. Influence of the resonant vibrational excitation of ethylene molecules on diamond deposition was investigated. The resonant vibrational excitation stimulated the formation of high hydrocarbon intermediates while suppressing the yield of carbon etchants, which suggested the possibility of modifying the combustion process in a way that favours diamond synthesis through resonant vibrational excitation.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enMass spectrometric investigation of the roles of several chemical intermediates in diamond synthesis
dc.typeArticle de revue
dc.identifier.doi10.1039/C4RA09058F
dc.subject.halChimie/Matériaux
bordeaux.journalRSC Advances
bordeaux.page4822-4830
bordeaux.volume5
bordeaux.issue7
bordeaux.peerReviewedoui
hal.identifierhal-01228748
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01228748v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=RSC%20Advances&rft.date=2015&rft.volume=5&rft.issue=7&rft.spage=4822-4830&rft.epage=4822-4830&rft.au=FAN,%20Lisha%20S.&ZHOU,%20Yun%20Shen&WANG,%20Mengxiao&GAO,%20Yang&XIONG,%20Wei&rft.genre=article


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