Mass Spectrometric study of graphene-oxide irradiated in vacuum by Nd: YAG laser

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00571835" target="_blank" >RIV/61389005:_____/23:00571835 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.vacuum.2023.112031" target="_blank" >https://doi.org/10.1016/j.vacuum.2023.112031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.vacuum.2023.112031" target="_blank" >10.1016/j.vacuum.2023.112031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mass Spectrometric study of graphene-oxide irradiated in vacuum by Nd: YAG laser

Popis výsledku v původním jazyce

During the laser ablation of a graphene oxide target in the vacuum with a 1064 nm ns laser at about 60 J/cm2 fluence, the ablation dynamics and molecular emission have been investigated using a quadrupole mass spectrometer (QMS), time-of-flight measures of the emitted ions and dedicated spectroscopies. The plasma characterization has been obtained giving providing the involved ion species and charge states, and the average temperature and density. Increasing the laser fluence the ablation yield, the plasma density and temperature, the velocity of the emitted particles and the emitted mass yields increase. Due to the laser heating a graphene oxide reduction is also observed. The oxygen is emitted as elemental and as part of different functional groups. A strong dehydration and dehydrogenation occur due to the laser pulse energy deposition, testifying the high content of water and hydrogen possessed by graphene oxide.

Název v anglickém jazyce

Mass Spectrometric study of graphene-oxide irradiated in vacuum by Nd: YAG laser

Popis výsledku anglicky

During the laser ablation of a graphene oxide target in the vacuum with a 1064 nm ns laser at about 60 J/cm2 fluence, the ablation dynamics and molecular emission have been investigated using a quadrupole mass spectrometer (QMS), time-of-flight measures of the emitted ions and dedicated spectroscopies. The plasma characterization has been obtained giving providing the involved ion species and charge states, and the average temperature and density. Increasing the laser fluence the ablation yield, the plasma density and temperature, the velocity of the emitted particles and the emitted mass yields increase. Due to the laser heating a graphene oxide reduction is also observed. The oxygen is emitted as elemental and as part of different functional groups. A strong dehydration and dehydrogenation occur due to the laser pulse energy deposition, testifying the high content of water and hydrogen possessed by graphene oxide.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Vacuum

ISSN

0042-207X

e-ISSN

1879-2715

Svazek periodika

212

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

112031

Kód UT WoS článku

000973299000001

EID výsledku v databázi Scopus

2-s2.0-85151280255