Work function engineering of single layer graphene by irradiation-induced defects

Jong Hun Kim, Jin Heui Hwang, Joonki Suh, Sefaattin Tongay, Sangku Kwon, C. C. Hwang, Junqiao Wu, Jeong Young Park

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

We report the tuning of electrical properties of single layer graphene by α-beam irradiation. As the defect density increases upon irradiation, the surface potential of the graphene changes, as determined by Kelvin probe force microscopy and Raman spectroscopy studies. X-ray photoelectron spectroscopy studies indicate that the formation of C/O bonding is promoted as the dose of irradiation increases when at atmospheric conditions. Our results show that the surface potential of the graphene can be engineered by introducing atomic-scale defects via irradiation with high-energy particles.

Original languageEnglish (US)
Article number171604
JournalApplied Physics Letters
Volume103
Issue number17
DOIs
StatePublished - Oct 21 2013
Externally publishedYes

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graphene
engineering
irradiation
defects
meteorology
particle energy
Raman spectroscopy
electrical properties
tuning
photoelectron spectroscopy
microscopy
dosage
probes
spectroscopy
x rays

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kim, J. H., Hwang, J. H., Suh, J., Tongay, S., Kwon, S., Hwang, C. C., ... Young Park, J. (2013). Work function engineering of single layer graphene by irradiation-induced defects. Applied Physics Letters, 103(17), [171604]. https://doi.org/10.1063/1.4826642

Work function engineering of single layer graphene by irradiation-induced defects. / Kim, Jong Hun; Hwang, Jin Heui; Suh, Joonki; Tongay, Sefaattin; Kwon, Sangku; Hwang, C. C.; Wu, Junqiao; Young Park, Jeong.

In: Applied Physics Letters, Vol. 103, No. 17, 171604, 21.10.2013.

Research output: Contribution to journalArticle

Kim, JH, Hwang, JH, Suh, J, Tongay, S, Kwon, S, Hwang, CC, Wu, J & Young Park, J 2013, 'Work function engineering of single layer graphene by irradiation-induced defects', Applied Physics Letters, vol. 103, no. 17, 171604. https://doi.org/10.1063/1.4826642
Kim, Jong Hun ; Hwang, Jin Heui ; Suh, Joonki ; Tongay, Sefaattin ; Kwon, Sangku ; Hwang, C. C. ; Wu, Junqiao ; Young Park, Jeong. / Work function engineering of single layer graphene by irradiation-induced defects. In: Applied Physics Letters. 2013 ; Vol. 103, No. 17.
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