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Effect of Si, Ge and Sn dopant elements on structure and photoluminescence of nano- and microdiamonds synthesized from organic compounds

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dc.contributor.authorEkimov, E. A.
dc.contributor.authorKondrin, M. V.
dc.contributor.authorKrivobok, V. S.
dc.contributor.authorKhomich, A. A.
dc.contributor.authorVlasov, I. I.
dc.date.accessioned2024-11-20T09:27:50Z
dc.date.available2024-11-20T09:27:50Z
dc.date.issued2019
dc.description.abstract© 2019 Elsevier B.V. HPHT synthesis of diamonds from hydrocarbons attracts great attention due to the opportunity to obtain luminescent nano- and microcrystals of high structure perfection. Systematic investigation of diamond synthesized from the mixture of hetero-hydrocarbons containing dopant elements Si or Ge (C24H20Si and C24H20Ge) with a pure hydrocarbon – adamantane (C10H16) at 8 GPa was performed. The photoluminescence of SiV− and GeV− centers in produced diamonds was found to be saturated when Si and Ge contents in precursors exceed some threshold values. The presence of SiC or Ge as second phases in diamond samples with saturated luminescence indicates that ultimate concentrations of the dopants were reached in diamond. It is shown that SiC inclusions can be captured by growing crystals and be a source of local stresses up to 2 GPa in diamond matrix. No formation of Ge-related inclusions in diamonds was detected, which makes Ge more promising as a dopant in the synthesis method. Surprisingly, the synthesis of diamonds from the C24H20Sn hetero-hydrocarbon was ineffective for SnV− formation: only fluorescence of N-and Si-related color centers was detected at room temperature. As an example of great potential for the synthesis method, mass synthesis of 50-nm diamonds with GeV− centers was realized at 9.4 GPa. Single GeV− production in individual nanodiamond was demonstrated.
dc.format.extentС. 75-83
dc.identifier.citationEffect of Si, Ge and Sn dopant elements on structure and photoluminescence of nano- and microdiamonds synthesized from organic compounds / Ekimov, E.A. [et al.] // Diamond and Related Materials. - 2019. - 93. - P. 75-83. - 10.1016/j.diamond.2019.01.029
dc.identifier.doi10.1016/j.diamond.2019.01.029
dc.identifier.urihttps://www.doi.org/10.1016/j.diamond.2019.01.029
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85061090785&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000464627200011
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/16524
dc.relation.ispartofDiamond and Related Materials
dc.titleEffect of Si, Ge and Sn dopant elements on structure and photoluminescence of nano- and microdiamonds synthesized from organic compounds
dc.typeArticle
dspace.entity.typePublication
oaire.citation.volume93
relation.isOrgUnitOfPublicationc8407a6f-7272-450d-8d99-032352c76b55
relation.isOrgUnitOfPublication.latestForDiscoveryc8407a6f-7272-450d-8d99-032352c76b55
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