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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00584934" target="_blank" >RIV/68378271:_____/24:00584934 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/24:00374108

Výsledek na webu

<a href="https://hdl.handle.net/11104/0352710" target="_blank" >https://hdl.handle.net/11104/0352710</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano14070590" target="_blank" >10.3390/nano14070590</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanomaterials

ISSN

2079-4991

e-ISSN

2079-4991

Svazek periodika

14

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

590

Kód UT WoS článku

001201668000001

EID výsledku v databázi Scopus

2-s2.0-85190278398