Insight into hydrogenation of graphene: Effect of hydrogen plasma chemistry

A. Felten, D. McManus, C. Rice, L. Nittler, J. J. Pireaux, C. Casiraghi

Résultats de recherche: Contribution à un journal/une revueArticle

10 Downloads (Pure)

Résumé

Plasma hydrogenation of graphene has been proposed as a tool to modify the properties of graphene. However, hydrogen plasma is a complex system and controlled hydrogenation of graphene suffers from a lack of understanding of the plasma chemistry. Here, we correlate the modifications induced on monolayer graphene studied by Raman spectroscopy with the hydrogen ions energy distributions obtained by mass spectrometry. We measure the energy distribution of H+, H2 +, and H3 + ions for different plasma conditions showing that their energy strongly depends on the sample position, pressure, and plasma power and can reach values as high as 45eV. Based on these measurements, we speculate that under specific plasma parameters, protons should possess enough energy to penetrate the graphene sheet. Therefore, a graphene membrane could become, under certain conditions, transparent to both protons and electrons.

langue originaleAnglais
Numéro d'article183104
journalApplied Physics Letters
Volume105
Numéro de publication18
Les DOIs
étatPublié - 3 nov. 2014

Empreinte digitale

plasma chemistry
hydrogen plasma
hydrogenation
graphene
energy distribution
protons
hydrogen ions
complex systems
mass spectroscopy
Raman spectroscopy
membranes
energy
ions
electrons

Citer ceci

@article{8501bb88b4ed4c998dfc90696baa22bb,
title = "Insight into hydrogenation of graphene: Effect of hydrogen plasma chemistry",
abstract = "Plasma hydrogenation of graphene has been proposed as a tool to modify the properties of graphene. However, hydrogen plasma is a complex system and controlled hydrogenation of graphene suffers from a lack of understanding of the plasma chemistry. Here, we correlate the modifications induced on monolayer graphene studied by Raman spectroscopy with the hydrogen ions energy distributions obtained by mass spectrometry. We measure the energy distribution of H+, H2 +, and H3 + ions for different plasma conditions showing that their energy strongly depends on the sample position, pressure, and plasma power and can reach values as high as 45eV. Based on these measurements, we speculate that under specific plasma parameters, protons should possess enough energy to penetrate the graphene sheet. Therefore, a graphene membrane could become, under certain conditions, transparent to both protons and electrons.",
author = "A. Felten and D. McManus and C. Rice and L. Nittler and Pireaux, {J. J.} and C. Casiraghi",
year = "2014",
month = "11",
day = "3",
doi = "10.1063/1.4901226",
language = "English",
volume = "105",
journal = "Appl. Phys. Lett.",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "18",

}

Insight into hydrogenation of graphene : Effect of hydrogen plasma chemistry. / Felten, A.; McManus, D.; Rice, C.; Nittler, L.; Pireaux, J. J.; Casiraghi, C.

Dans: Applied Physics Letters, Vol 105, Numéro 18, 183104, 03.11.2014.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Insight into hydrogenation of graphene

T2 - Effect of hydrogen plasma chemistry

AU - Felten, A.

AU - McManus, D.

AU - Rice, C.

AU - Nittler, L.

AU - Pireaux, J. J.

AU - Casiraghi, C.

PY - 2014/11/3

Y1 - 2014/11/3

N2 - Plasma hydrogenation of graphene has been proposed as a tool to modify the properties of graphene. However, hydrogen plasma is a complex system and controlled hydrogenation of graphene suffers from a lack of understanding of the plasma chemistry. Here, we correlate the modifications induced on monolayer graphene studied by Raman spectroscopy with the hydrogen ions energy distributions obtained by mass spectrometry. We measure the energy distribution of H+, H2 +, and H3 + ions for different plasma conditions showing that their energy strongly depends on the sample position, pressure, and plasma power and can reach values as high as 45eV. Based on these measurements, we speculate that under specific plasma parameters, protons should possess enough energy to penetrate the graphene sheet. Therefore, a graphene membrane could become, under certain conditions, transparent to both protons and electrons.

AB - Plasma hydrogenation of graphene has been proposed as a tool to modify the properties of graphene. However, hydrogen plasma is a complex system and controlled hydrogenation of graphene suffers from a lack of understanding of the plasma chemistry. Here, we correlate the modifications induced on monolayer graphene studied by Raman spectroscopy with the hydrogen ions energy distributions obtained by mass spectrometry. We measure the energy distribution of H+, H2 +, and H3 + ions for different plasma conditions showing that their energy strongly depends on the sample position, pressure, and plasma power and can reach values as high as 45eV. Based on these measurements, we speculate that under specific plasma parameters, protons should possess enough energy to penetrate the graphene sheet. Therefore, a graphene membrane could become, under certain conditions, transparent to both protons and electrons.

UR - http://www.scopus.com/inward/record.url?scp=84908592899&partnerID=8YFLogxK

U2 - 10.1063/1.4901226

DO - 10.1063/1.4901226

M3 - Article

AN - SCOPUS:84908592899

VL - 105

JO - Appl. Phys. Lett.

JF - Appl. Phys. Lett.

SN - 0003-6951

IS - 18

M1 - 183104

ER -