Colomer, Jean-François

Henrard, Luc

Lambin, Philippe

Pireaux, Jean-Jacques

Sporken, Robert

English

Repository of the University of Namur

RESEARCH OUTPUTS / RÉSULTATS DE RECHERCHEAuthor(s) - Auteur(s) :Publication date - Date de publication :Permanent link - Permalien :Rights / License - Licence de droit d’auteur :Bibliothèque Universitaire Moretus PlantinInstitutional Repository - Research PortalDépôt Institutionnel - Portail de la Rechercheresearchportal.unamur.beGraphene: from synthesis to the tailoringColomer, Jean-François; Henrard, Luc; Lambin, Philippe; Pireaux, Jean-Jacques; Sporken,RobertPublication date:2014Document VersionEarly version, also known as pre-printLink to publicationCitation for pulished version (HARVARD):Colomer, J-F, Henrard, L, Lambin, P, Pireaux, J-J & Sporken, R 2014, Graphene: from synthesis to the tailoring.Thematic research brochure: Materials 2014, Académie Universitaire Louvain.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            • Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            • You may not further distribute the material or use it for any profit-making activity or commercial gain            • You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediatelyand investigate your claim.Download date: 23. Jun. 2020  Graphene, from synthesis to the tailoring of its properties   Senior scientist(s)    Jean-François COLOMER  Luc HENRARD  Philippe LAMBIN  Jean-Jacques PIREAUX  Robert SPORKEN        Research Field and Subjects                Graphene is a truly two-dimensional crystal composed of carbon whose atoms form a chicken-wire like network with strong covalent bonds. Graphite is a piling of almost infinitely many graphene sheets bound together by weak van der Waals forces. Many interesting properties of graphene put this material at the foreground of present day nanosciences. Graphene is mechanically hard, extremely flexible, chemically inert, impermeable to any atom and molecule, optically transparent. It is a zero-gap semiconductor easily made conducting by electrostatic charging, the charge carriers having then a remarkable mobility, and it has an excellent thermal conductivity. The electronic properties of graphene depend strongly on its environment, which makes it a good candidate for sensing. Initially isolated from graphite by skillful exfoliation, then obtained by annealing of carbon terminated (0001) face of SiC, graphene is most commonly produced today by thermal decomposition of hydrocarbon molecules at the surface of a metal held at high temperature. Copper foil, leading to high areas of monolayer graphene, is widely used for that.  The research conducted in the Université of Namur covers all these fields, including synthesis and characterization (diffraction, spectroscopy, microscopy) of samples produced by the techniques mentioned above. Chemical doping of graphene grown on SiC has been achieved by plasma treatment. Functionalization of graphene is conducted with the aim of endowing it with specific reactivity. In parallel to these experimental efforts, electronic and vibrational properties of graphene are searched out on the computer to learn how they are influenced by mechanical strain or by a particular lattice defect, edge, grain boundary, impurity or adsorbed molecule, and could thereby be tailored for specific applications. Plasmons and electromagnetic properties of graphene nanostructures are also under investigation in the quest for new optical and shielding effects.   Representative References  RECKINGER N., FELTEN A., SANTOS C.N., HACKENS B., COLOMER J.F., The influence of residual oxidizing impurities on the synthesis of graphene by atmospheric pressure chemical vapor deposition. Carbon, in press. 2013. PHAM THANH T., JOUCKEN F., CAMPOS-DELGADO J., RASKIN J., HACKENS B., SPORKEN, R., Direct growth of graphitic carbon on Si(111). Appl. Phys. Lett. 102(1): 013118.1-6. 2013. LAMBIN Ph., POPOV V.N., Theoretical 2D Raman band of strained graphene, Phys. Rev. B  87(15): 155425.1-7. 2013. FELTEN A., FLAVEL B.S., HIRTZ M., BRITNEL L., ECKMAN A., LOUETTE P., PIREAUX J.J., KRUPKE R., CASIRAGHI C., Single- and double-sided chemical    functionalization of bilayer graphene. Small 9(4): 631-639. 2013. MARK G.I, VANCSO P., LAMBIN Ph., HWANG Ch., BIRO L.P., Forming electronic waveguides from graphene grain boundaries. J. Nanophotonics 6(1): 061718.1-6. 2012. LAMBIN Ph., AMARA H., DUCASTELLE F., HENRARD L., Long-range interactions between substitutional nitrogen dopants in graphene: Electronic properties calculations. Phys. Rev. B 86(4): 045448.1-10. 2012. JOUCKEN F., TISON Y., LAGOUTE J., DUMONT J., CABOSART D., ZHENG B., REPAIN. V., CHACON C., GIRARD Y., BOTELLO-MENDEZ A.R., ROUSSET S., SPORKEN R., CHARLIER J.C., HENRARD L. Localized state and charge transfer in nitrogen-doped graphene, Phys. Rev. B 85(16): 161408(R).1-5. 2012.   Awards  A. FELTEN (J.J. PIREAUX's group) was awarded the "Prix Courtoy" (FUNDP, 2011) for his work on the functionalization of carbon nanostructures by cold plasma   Funding  Université de Namur Fonds de la recherche scientifique (FNRS) European research executing agency (REA)  Vietnam international education development   Partnership  NANOWAL (Réseau Wallon pour les nanotechnologies) http://www.nano.be FNRS Contact Group "Nanostructure" http://www.fnrs.be/fr/financer-les-chercheurs/groupes-de-contact.html French CNRS GDRi "Graphene and nanotubes" http://www.graphene-nanotubes.org European FP7 MC IRSES project 318617 FAEMCAR (2012-2016) http://www.faemcar.be    Main Equipment  CVD reactors Chambers for plasma treatment Auger electron spectroscopy (AES) X-ray photoemission spectroscopy (XPS) Scanning transmission electron microscope (STEM) Scanning tunneling microscope (STM) and Atomic force microscope (AFM) PTCI computing center (Plateforme technologique de calcul intensif)   Products and Services  Good knowledge of the field and of the literature Synthesis - doping - functionalization - characterization tools Modeling means for the interpretation of measurements   Keywords  Carbon Chemical vapour deposition Mechanical properties Raman spectroscopy Electronic properties Plasmons Nanotechnology   Contact(s)  Philippe LAMBIN philippe.lambin@unamur.be Tel. 32 (0) 81724721  Jean-François COLOMER Jean-francois.colomer@unamur.be Tel. 32 (0) 81724708   Web site(s)  http://www.pmr-namur.be    

Graphene: from synthesis to the tailoring

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Graphene: from synthesis to the tailoring

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