Electrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and size

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dc.contributor.authorStehlík, Štěpán
dc.contributor.authorSzabo, Ondřej
dc.contributor.authorShagieva, Ekaterina
dc.contributor.authorMiliaieva, Daria
dc.contributor.authorKromka, Alexander
dc.contributor.authorNemeckova, Zuzana
dc.contributor.authorHenych, Jiří
dc.contributor.authorKozempel, Jan
dc.contributor.authorEkimov, Evgeny
dc.contributor.authorRezek, Bohuslav
dc.date.accessioned2024-12-18T20:10:55Z
dc.date.available2024-12-18T20:10:55Z
dc.date.issued2024
dc.description.abstract-translatedHydrogenated nanodiamonds (NDs) get increasing attention as promising nanomaterial in biology as well as optoelectronics. This study shows how the ND synthesis process and ND size are reflected in their different colloidal/hydration and electronic properties. We employ three different ND types: detonation ND (DND), topdown high-pressure high-temperature ND (TD_HPHT ND) prepared by milling of HPHT monocrystals, and bottom-up high-pressure high-temperature ND (BU_HPHT ND) prepared by HPHT synthesis from chloroadamantane. Zeta potential measurements and Fourier transform infrared spectroscopy analysis (FTIR) reveal the best colloidal stability in neutral to basic pH and the strongest affinity to water for DND. Electrical and FTIR measurements connected with an annealing treatment show a steep increase of electrical conductivity in BU_HPHT ND above 2 nm and reveal different contribution of transfer doping in BU_HPHT ND and TD_HPHT ND despite similar conductivity values (≈ 10􀀀 5 S.cm􀀀 1). We also confirm the correlation of the ND conductivity with IR transmission at the phonon frequency of the diamond (1330 cm􀀀 1). Neutron irradiation of a TD_HPHT ND corroborates the crucial role of structural defects in the above colloidal and electronic properties of hydrogenated nanodiamonds.en
dc.description.sponsorshipStrojní inženýrství biologických a bioinspirovaných systémů EH22_008/0004634cs
dc.format11 s.cs
dc.identifier.doihttps://doi.org/10.1016/j.cartre.2024.100327
dc.identifier.issn2667-0569
dc.identifier.urihttp://hdl.handle.net/11025/57985
dc.language.isoenen
dc.publisherElsevieren
dc.rights© CC BY 4.0en
dc.rights.accessopenAccessen
dc.subjectnanodiamantcs
dc.subjecthydrogenacecs
dc.subjectpozitivní zeta potenciálcs
dc.subjectvodivostcs
dc.subjectFourierova transformace infračervenou spektroskopiícs
dc.subject.translatednanodiamonden
dc.subject.translatedhydrogenationen
dc.subject.translatedpositive zeta potentialen
dc.subject.translatedconductivityen
dc.subject.translatedFTIRen
dc.titleElectrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and sizeen
dc.typearticleen
dc.typečlánekcs
dc.type.statusPeer revieweden
dc.type.versionpublishedVersionen
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local.files.size4676339*
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