Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7674
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dc.contributor.authorChoulis, Stelios A.-
dc.contributor.authorTuladhar, Sachetan M.-
dc.contributor.authorPoplavskyy, Dmitry-
dc.contributor.otherΧούλης, Στέλιος Α.-
dc.date.accessioned2013-03-06T15:39:33Zen
dc.date.accessioned2013-05-17T05:22:58Z-
dc.date.accessioned2015-12-02T10:13:56Z-
dc.date.available2013-03-06T15:39:33Zen
dc.date.available2013-05-17T05:22:58Z-
dc.date.available2015-12-02T10:13:56Z-
dc.date.issued2005-07-04-
dc.identifier.citationAdvanced functional materials, 2005, vol. 15, no. 7, pp. 1171-1182en_US
dc.identifier.issn1616-301X-
dc.description.abstractHerein, we report experimental studies of electron and hole transport in thin films of [6,6]-phenyl C61 butyric acid methyl ester (PCBM) and in blends of poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) with PCBM. The low-field hole mobility in pristine MDMO-PPV is of the order of 10–7 cm2 V–1 s–1, in agreement with previous studies, whereas the electron mobility in pristine PCBM was found by current-density–voltage (J–V) measurements to be of the order of 10–2 cm2 V–1 s–1, which is about one order of magnitude greater than previously reported. Adding PCBM to the blend increases both electron and hole mobilities, compared to the pristine polymer, and results in less dispersive hole transport. The hole mobility in a blend containing 67 wt.-% PCBM is at least two orders of magnitude greater than in the pristine polymer. This result is independent of measurement technique and film thickness, indicating a true bulk property of the material. We therefore propose that PCBM may assist hole transport in the blend, either by participating in hole transport or by changing the polymer-chain packing to enhance hole mobility. Time-of-flight mobility measurements of PCBM dispersed in a polystyrene matrix yield electron and hole mobilities of similar magnitude and relatively non-dispersive transport. To the best of our knowledge, this is the first report of hole transport in a methanofullerene. We discuss the conditions under which hole transport in the fullerene phase of a polymer/fullerene blend may be expected. The relevance to photovoltaic device function is also discusseden_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.publisherWileyen
dc.relation.ispartofAdvanced Functional Materialsen_US
dc.rights© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheimen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectCharge transferen_US
dc.subjectElectric currentsen_US
dc.subjectEstersen_US
dc.subjectFullerenesen_US
dc.subjectThin filmsen_US
dc.subjectMethaneen_US
dc.titleAmbipolar charge transport in films of methanofullerene and poly(phenylenevinylene)/methanofullerene blendsen_US
dc.typeArticleen_US
dc.affiliationImperial College Londonen
dc.collaborationImperial College Londonen_US
dc.subject.categoryENGINEERING AND TECHNOLOGYen_US
dc.countryGreeceen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1002/adfm.200400337en_US
dc.dept.handle123456789/54en
dc.relation.issue7en_US
dc.relation.volume15en_US
cut.common.academicyear2005-2006en_US
dc.identifier.spage1171en_US
dc.identifier.epage1182en_US
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.openairetypearticle-
item.languageiso639-1en-
item.cerifentitytypePublications-
crisitem.journal.journalissn1616-3028-
crisitem.journal.publisherWiley-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.orcid0000-0002-7899-6296-
crisitem.author.parentorgFaculty of Engineering and Technology-
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