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dc.contributor.authorLi, Huawei
dc.contributor.authorTermine, Roberto
dc.contributor.authorGodbert, Nicolas
dc.contributor.authorAngiolini, Luigi
dc.contributor.authorGiorgini, Loris
dc.contributor.authorGolemme, Attilio
dc.date.accessioned2015-08-03T09:05:00Z
dc.date.available2015-08-03T09:05:00Z
dc.date.issued2011-07
dc.identifier.issn15661199
dc.identifier.doi10.1016/j.orgel.2011.03.043
dc.identifier.urihttp://hdl.handle.net/10754/561805
dc.description.abstractThe photoconductivity, hole mobility and charge photogeneration efficiency of a series of side-chain carbazole homopolymers and copolymers (with azo side-chains) have been investigated. Cyclic voltammetry measurement of frontier orbitals energies show that the HOMO energy is determined by the nature and the position of attachment of the linker between the main chain and the carbazole, the azo-moiety being not relevant in this respect. Hole mobility is not influenced by the HOMO energy but seems to depend on the degree of conformational mobility of the side-chains, reaching values of the order of 10-3cm2V-1s-1 in the best cases. The HOMO energy is instead extremely important when considering photogeneration efficiency, that can change by 10 orders of magnitude depending on the density of the carbazole side-chains in co-polymers and on the linker nature and attachment position. © 2011 Elsevier B.V. All rights reserved.
dc.publisherElsevier BV
dc.subjectCarbazole homopolymers
dc.subjectCharge photogeneration
dc.subjectHole mobility
dc.subjectOrganic semiconductors
dc.titleCharge photogeneration and transport in side-chain carbazole polymers and co-polymers
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalOrganic Electronics
dc.contributor.institutionCentro di Eccellenza CEMIF. CAL, LASCAMM CR-INSTM, Universit della Calabria, 87036 Rende, Italy
dc.contributor.institutionDipartimento di Chimica Industriale e Dei Materiali and INSTM UdR-Bologna, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
kaust.personLi, Huawei


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