Sci-Bytes> Hot Paper in Chemistry
Week of October 16, 2011
"Roll-to-roll production of 30-inch graphene films for transparent electrodes," by Sukang Bae and 15 others, Nature Nanotechnology, 5(8): 574-8, August 2010.
[Authors' affiliations: 8 South Korean, Singaporean, and Japanese institutions]
Abstract: "The outstanding electrical, mechanical, and chemical properties of graphene make it attractive for applications in flexible electronics. However, efforts to make transparent conducting films from graphene have been hampered by the lack of efficient methods for the synthesis, transfer and doping of graphene at the scale and quality required for applications. Here, we report the roll-to-roll production and wet-chemical doping of predominantly monolayer 30-inch graphene films grown by chemical vapour deposition onto flexible copper substrates. The films have sheet resistances as low as similar to 125 Omega square(-1) with 97.4% optical transmittance, and exhibit the half-integer quantum Hall effect, indicating their high quality. We further use layer-by-layer stacking to fabricate a doped four-layer film and measure its sheet resistance at values as low as similar to 30 Omega square(-1) at similar to 90% transparency, which is superior to commercial transparent electrodes such as indium tin oxides. Graphene electrodes were incorporated into a fully functional touch-screen panel device capable of withstanding high strain."
This 2010 report from Nature Nanotechnology was cited 40 times in current journal articles indexed by Clarivate during May-June 2011. During that two-month period, this was the second-most-cited paper, aside from review articles, published in the last two years in the broad field of chemistry (although, as was noted in its previously featured appearance after the March-April count, this materials-science paper is also attracting many current citations in physics journals). Prior to the most recent bimonthly count, citations to the paper have accrued as follows:
March-April 2011: 71 citations
January-February 2011: 17
November-December 2010: 12
September-October 2010: 12
July-August 2010: 2
Total citations to date: 154
SOURCE: Hot Papers Database (Included with a subscription to Science Watch®, available from the Research Services Group of Thomson Reuters. The Hot Papers Database contains data on hundreds of highly cited papers published during the last two years. User interface permits searching by author, organization, journal, field, and more. Total citations, as well as citations accrued during successive bimonthly periods, can be assessed and graphed. New Hot Papers updates are produced every two months.
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