liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Surface functionalization of epitaxial graphene on SiC by ion irradiation for gas sensing application
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, Faculty of Science & Engineering. Jamia Millia Islamia, India.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-1000-0437
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Faculty of Science & Engineering.
University of Delhi, India.
Show others and affiliations
2017 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 403, 707-716 p.Article in journal (Refereed) Published
Abstract [en]

In this work, surface functionalization of epitaxial graphene grown on silicon carbide was performed by ion irradiation to investigate their gas sensing capabilities. Swift heavy ion irradiation using 100 MeV silver ions at four varying fluences was implemented on epitaxial graphene to investigate morphological and structural changes and their effects on the gas sensing capabilities of graphene. Sensing devices are expected as one of the first electronic applications using graphene and most of them use functionalized surfaces to tailor a certain function. In our case, we have studied irradiation as a tool to achieve functionalization. Morphological and structural changes on epitaxial graphene layers were investigated by atomic force microscopy, Raman spectroscopy, Raman mapping and reflectance mapping. The surface morphology of irradiated graphene layers showed graphene folding, hillocks, and formation of wrinkles at highest fluence (2 x 10(13) ions/cm(2)). Raman spectra analysis shows that the graphene defect density is increased with increasing fluence, while Raman mapping and reflectance mapping show that there is also a reduction of monolayer graphene coverage. The samples were investigated for ammonia and nitrogen dioxide gas sensing applications. Sensors fabricated on pristine and irradiated samples showed highest gas sensing response at an optimal fluence. Our work provides new pathways for introducing defects in controlled manner in epitaxial graphene, which can be used not only for gas sensing application but also for other applications, such as electrochemical, biosensing, magnetosensing and spintronic applications. (C) 2017 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2017. Vol. 403, 707-716 p.
Keyword [en]
Epitaxial graphene; Surface functionalization; Ion irradiation; Gas sensors
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-136854DOI: 10.1016/j.apsusc.2017.01.111ISI: 000395952800084OAI: oai:DiVA.org:liu-136854DiVA: diva2:1092116
Note

Funding Agencies|Graphene Flagship [CNECT-ICT-604391]; Swedish Research Council [2015-05876]

Available from: 2017-04-30 Created: 2017-04-30 Last updated: 2017-05-19

Open Access in DiVA

The full text will be freely available from 2019-01-17 13:52
Available from 2019-01-17 13:52

Other links

Publisher's full text

Search in DiVA

By author/editor
Kaushik, Priya DarshniIvanov, Ivan GueorguievLin, Pin-ChengEriksson, JensSyväjärvi, MikaelYazdi, Gholamreza
By organisation
Semiconductor MaterialsFaculty of Science & EngineeringDepartment of Physics, Chemistry and BiologyApplied Sensor Science
In the same journal
Applied Surface Science
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 47 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf