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Analysis of institutional authors

Hernandez YAuthor

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September 24, 2024
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High-yield production of graphene by liquid-phase exfoliation of graphite.

Publicated to: Nature Nanotechnology. 3 (9): 563-568 - 2008-09-01 3(9), DOI: 10.1038/nnano.2008.215

Authors:

Hernandez Y; Nicolosi V; Lotya M; Blighe FM; Sun Z; De S; McGovern IT; Holland B; Byrne M; Gun'Ko YK; Boland JJ; Niraj P; Duesberg G; Krishnamurthy S; Goodhue R; Hutchison J; Scardaci V; Ferrari AC; Coleman JN
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Affiliations

- Author
School of Physics, Trinity College Dublin, Dublin 2, Ireland. - Author

Abstract

Fully exploiting the properties of graphene will require a method for the mass production of this remarkable material. Two main routes are possible: large-scale growth or large-scale exfoliation. Here, we demonstrate graphene dispersions with concentrations up to approximately 0.01 mg ml(-1), produced by dispersion and exfoliation of graphite in organic solvents such as N-methyl-pyrrolidone. This is possible because the energy required to exfoliate graphene is balanced by the solvent-graphene interaction for solvents whose surface energies match that of graphene. We confirm the presence of individual graphene sheets by Raman spectroscopy, transmission electron microscopy and electron diffraction. Our method results in a monolayer yield of approximately 1 wt%, which could potentially be improved to 7-12 wt% with further processing. The absence of defects or oxides is confirmed by X-ray photoelectron, infrared and Raman spectroscopies. We are able to produce semi-transparent conducting films and conducting composites. Solution processing of graphene opens up a range of potential large-area applications, from device and sensor fabrication to liquid-phase chemistry.
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Keywords

GraphiteN-methylpyrrolidonePhase transitionPyrrolidinonesSpectrum analysis

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Nature Nanotechnology due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2008, it was in position 2/189, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-03-13:

  • Europe PMC: 1066
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-03-13:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 4995.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4993 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 42.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).
  • The number of mentions on Wikipedia: 8 (Altmetric).
  • The number of mentions in news outlets: 1 (Altmetric).
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: United Kingdom.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Navarrete, Cristina) .

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