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Electrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and size
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SYSNO ASEP 0585214 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Electrical and colloidal properties of hydrogenated nanodiamonds: Effects of structure, composition and size Author(s) Stehlík, Štěpán (FZU-D) RID, ORCID
Szabó, Ondrej (FZU-D) ORCID, RID
Shagieva, Ekaterina (FZU-D) ORCID
Miliaieva, Daria (FZU-D) ORCID, RID
Kromka, Alexander (FZU-D) RID, ORCID, SAI
Němečková, Zuzana (UACH-T) SAI, RID, ORCID
Henych, Jiří (UACH-T) SAI, RID, ORCID
Kozempel, J. (CZ)
Ekimov, E. (RU)
Rezek, B. (CZ)Number of authors 10 Article number 100327 Source Title Carbon Trends. - : Elsevier
Roč. 14, Mar (2024)Number of pages 11 s. Language eng - English Country NL - Netherlands Keywords nanodiamond ; hydrogenation ; positive zeta potential ; conductivity ; FTIR Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Nano-materials (production and properties) Subject RIV - cooperation Institute of Inorganic Chemistry - Physical ; Theoretical Chemistry R&D Projects LM2023066 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CzechNanoLab II - 90251 - Vysoké učení technické v Brně / Středoevropský technologický institut Method of publishing Open access Institutional support FZU-D - RVO:68378271 ; UACH-T - RVO:61388980 UT WOS 001183565000001 EID SCOPUS 85184832774 DOI 10.1016/j.cartre.2024.100327 Annotation 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. We also confirm the correlation of the ND conductivity with IR transmission at the phonon frequency of the diamond. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0352975
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