000060902 001__ 60902
000060902 005__ 20200221144319.0
000060902 0247_ $$2doi$$a10.1088/0957-4484/27/36/365708
000060902 0248_ $$2sideral$$a96313
000060902 037__ $$aART-2016-96313
000060902 041__ $$aeng
000060902 100__ $$aGross, K.
000060902 245__ $$aElectrical conductivity of oxidized-graphenic nanoplatelets obtained from bamboo: Effect of the oxygen content
000060902 260__ $$c2016
000060902 5060_ $$aAccess copy available to the general public$$fUnrestricted
000060902 5203_ $$aThe large-scale production of graphene and reduced-graphene oxide (rGO) requires low-cost and eco-friendly synthesis methods. We employed a new, simple, cost-effective pyrolytic method to synthetize oxidized-graphenic nanoplatelets (OGNP) using bamboo pyroligneous acid (BPA) as a source. Thorough analyses via high-resolution transmission electron microscopy and electron energy-loss spectroscopy provides a complete structural and chemical description at the local scale of these samples. In particular, we found that at the highest carbonization temperature the OGNP-BPA are mainly in a sp2 bonding configuration (sp2 fraction of 87%). To determine the electrical properties of single nanoplatelets, these were contacted by Pt nanowires deposited through focused-ion-beam-induced deposition techniques. Increased conductivity by two orders of magnitude is observed as oxygen content decreases from 17% to 5%, reaching a value of 2.3 103 S m-1 at the lowest oxygen content. Temperature-dependent conductivity reveals a semiconductor transport behavior, described by the Mott three-dimensional variable range hopping mechanism. From the localization length, we estimate a band-gap value of 0.22(2) eV for an oxygen content of 5%. This investigation demonstrates the great potential of the OGNP-BPA for technological applications, given that their structural and electrical behavior is similar to the highly reduced rGO sheets obtained by more sophisticated conventional synthesis methods.
000060902 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FIS2013-46159-C3-3-P$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 642742-Enabling Excellence$$9info:eu-repo/grantAgreement/EC/H2020/642742/EU/Graphene-based nanomaterials for touchscreen technologies: Comprehension, Commerce and Communication/Enabling Excellence$$9info:eu-repo/grantAgreement/EC/FP7/604391/EU/Graphene-Based Revolutions in ICT And Beyond/GRAPHENE$$9info:eu-repo/grantAgreement/EC/FP7/312483/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM 2$$9info:eu-repo/grantAgreement/ES/DGA/E26
000060902 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000060902 590__ $$a3.44$$b2016
000060902 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b59 / 275 = 0.215$$c2016$$dQ1$$eT1
000060902 591__ $$aPHYSICS, APPLIED$$b27 / 147 = 0.184$$c2016$$dQ1$$eT1
000060902 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b34 / 87 = 0.391$$c2016$$dQ2$$eT2
000060902 592__ $$a1.339$$b2016
000060902 593__ $$aBioengineering$$c2016$$dQ1
000060902 593__ $$aChemistry (miscellaneous)$$c2016$$dQ1
000060902 593__ $$aElectrical and Electronic Engineering$$c2016$$dQ1
000060902 593__ $$aNanoscience and Nanotechnology$$c2016$$dQ1
000060902 593__ $$aMechanical Engineering$$c2016$$dQ1
000060902 593__ $$aMechanics of Materials$$c2016$$dQ1
000060902 593__ $$aMaterials Science (miscellaneous)$$c2016$$dQ1
000060902 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000060902 700__ $$aBarragán, J.J.P.
000060902 700__ $$0(orcid)0000-0002-4123-487X$$aSangiao, S.
000060902 700__ $$0(orcid)0000-0001-9566-0738$$aDe Teresa, J.M.$$uUniversidad de Zaragoza
000060902 700__ $$aLajaunie, L.
000060902 700__ $$0(orcid)0000-0002-2071-9093$$aArenal, R.$$uUniversidad de Zaragoza
000060902 700__ $$aCalderón, H.A.
000060902 700__ $$aPrieto, P.
000060902 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000060902 773__ $$g27, 36 (2016), 365708 [10 pp.]$$pNanotechnology$$tNanotechnology$$x0957-4484
000060902 8564_ $$s967992$$uhttps://zaguan.unizar.es/record/60902/files/texto_completo.pdf$$yPostprint
000060902 8564_ $$s86870$$uhttps://zaguan.unizar.es/record/60902/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000060902 909CO $$ooai:zaguan.unizar.es:60902$$particulos$$pdriver
000060902 951__ $$a2020-02-21-13:41:02
000060902 980__ $$aARTICLE