Journal
APPLIED SURFACE SCIENCE
Volume 258, Issue 22, Pages 9092-9095Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2012.06.006
Keywords
Graphene; Highly ordered pyrolytic graphite; Liquid-phase pulsed laser exfoliation
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Funding
- National Science Foundation [CMMI 0758199]
- Nebraska Research Initiative, Nebraska Center for Energy Science Research [N00014-09-1-0943]
- Office of Naval Research [MURI N00014-05-1-0432]
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Graphene suspension was obtained through liquid-phase pulsed laser exfoliation of highly ordered pyrolytic graphite (HOPG). The liquid-phase pulsed laser process leaded to the compression and expansion of HOPG surface, resulting in the exfoliation of graphene sheets. Graphene sheets of similar to 1 nm in thickness and micrometers in size were obtained. Transparent conductive graphene films were fabricated by vacuum filtration, showing an electrical conductivity of similar to 1000 S/m and an optical transparency of similar to 75% at 550 nm. This study demonstrated the growth of few-layer graphene by pulsed laser exfoliation of HOPG in liquid and explored its applications in transparent conductive films. (C) 2012 Elsevier B. V. All rights reserved.
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