Number of the records: 1
Utilizing constant energy difference between sp-peak and C 1s core level in photoelectron spectra for unambiguous identification and quantification of diamond phase in nanodiamonds
- 1.
SYSNO ASEP 0584934 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Utilizing constant energy difference between sp-peak and C 1s core level in photoelectron spectra for unambiguous identification and quantification of diamond phase in nanodiamonds Author(s) Romanyuk, Olexandr (FZU-D) RID, ORCID
Stehlík, Štěpán (FZU-D) RID, ORCID
Zemek, Josef (FZU-D) RID, ORCID
Aubrechtová Dragounová, Kateřina (FZU-D) ORCID
Kromka, Alexander (FZU-D) RID, ORCID, SAINumber of authors 5 Article number 590 Source Title Nanomaterials. - : MDPI - ISSN 2079-4991
Roč. 14, č. 7 (2024)Number of pages 14 s. Language eng - English Country CH - Switzerland Keywords nanodiamond ; XPS ; UPS ; Raman spectroscopy ; graphitization ; ArCIB sputtering Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects LM2023051 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LUASK22202 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EH22_008/0004596 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LUASK22147 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001201668000001 EID SCOPUS 85190278398 DOI https://doi.org/10.3390/nano14070590 Annotation We conducted a comparative analysis of the graphitization process in various types of hydrogenated NDs, considering differences in ND size and quality. The samples underwent annealing in an ultra-high vacuum and sputtering by Ar cluster ion beam (ArCIB). Samples were investigated by in situ X-ray photoelectron spectroscopy (XPS), in situ ultraviolet photoelectron spectroscopy (UPS), and Raman spectroscopy (RS). Our investigation revealed that the graphitization temperature of NDs ranges from 600 °C to 700 °C and depends on the size and crystallinity of the NDs. We revealed a constant energy difference of 271.3 eV between the sp-peak in the valence band spectra (at around 13.7 eV) and the sp3 component in the C 1s core level spectra (at 285.0 eV). The identification of this energy difference helps in calibrating charge shifts and serves the unambiguous identification of the sp3 bond contribution in the C 1s spectra obtained from ND samples. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0352710
Number of the records: 1