000070204 001__ 70204
000070204 005__ 20200221144345.0
000070204 0247_ $$2doi$$a10.1016/j.carbon.2016.05.004
000070204 0248_ $$2sideral$$a94912
000070204 037__ $$aART-2016-94912
000070204 041__ $$aeng
000070204 100__ $$aBalima, F.
000070204 245__ $$aRadial collapse of carbon nanotubes for conductivity optimized polymer composites
000070204 260__ $$c2016
000070204 5060_ $$aAccess copy available to the general public$$fUnrestricted
000070204 5203_ $$aThe optimization of the electronic conduction of carbon nanotube polymer composites is studied by tuning the radial geometry of the carbon nanotubes in a compression cycle. We have investigated the structural evolution of multi-walled carbon nanotubes in a polyamide matrix as a function of applied high pressure. Combining high resolution electron microscopy and small angle neutron scattering experiments, we conclude that the nanotube radial cross-section is irreversibly deformed following applied pressures up to 5 GPa. Studying highly percolated composites we observe that the sample resistivity drastically decreases with pressure up to about 2 GPa with no further change up to the maximum 5 GPa applied pressure. An important hysteresis is observed upon decompression which leads to an enhanced electrical conductivity of the composite in all the studied compression cycles with maximum pressures ranging from 1 to 5 GPa. Modelling the radial collapse of single-walled carbon nanotubes shows that the modified radial geometry can considerably improve the electronic transport properties in contacted carbon nanotube junctions. Our results open opportunities for engineering nanotube composites by controlling the radial collapse.
000070204 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$$9info:eu-repo/grantAgreement/EC/H2020/642742/EU/Graphene-based nanomaterials for touchscreen technologies: Comprehension, Commerce and Communication/Enabling Excellence
000070204 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000070204 590__ $$a6.337$$b2016
000070204 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b32 / 275 = 0.116$$c2016$$dQ1$$eT1
000070204 591__ $$aCHEMISTRY, PHYSICAL$$b23 / 145 = 0.159$$c2016$$dQ1$$eT1
000070204 592__ $$a2.091$$b2016
000070204 593__ $$aChemistry (miscellaneous)$$c2016$$dQ1
000070204 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000070204 700__ $$aLe Floch, S.
000070204 700__ $$aAdessi, C.
000070204 700__ $$aCerqueira, T. F. T.
000070204 700__ $$aBlanchard, N.
000070204 700__ $$0(orcid)0000-0002-2071-9093$$aArenal, R.$$uUniversidad de Zaragoza
000070204 700__ $$aBrûlet, A.
000070204 700__ $$aMarques, M. A. L.
000070204 700__ $$aBotti, S.
000070204 700__ $$aSan-Miguel, A.
000070204 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000070204 773__ $$g106 (2016), 64-73$$pCarbon$$tCarbon$$x0008-6223
000070204 8564_ $$s2756306$$uhttps://zaguan.unizar.es/record/70204/files/texto_completo.pdf$$yPostprint
000070204 8564_ $$s66437$$uhttps://zaguan.unizar.es/record/70204/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000070204 909CO $$ooai:zaguan.unizar.es:70204$$particulos$$pdriver
000070204 951__ $$a2020-02-21-13:52:06
000070204 980__ $$aARTICLE