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2021-02-02Zeitschriftenartikel DOI: 10.18452/24054
Disentangling Bulk and Interface Phenomena in a Molecularly Doped Polymer Semiconductor
dc.contributor.authorLungwitz, Dominique
dc.contributor.authorSchultz, Thorsten
dc.contributor.authorTait, Claudia
dc.contributor.authorBehrends, Jan
dc.contributor.authorMohapatra, Swagat
dc.contributor.authorBarlow, Stephen
dc.contributor.authorMarder, Seth
dc.contributor.authorOpitz, Andreas
dc.contributor.authorKoch, Norbert
dc.date.accessioned2022-02-01T11:39:46Z
dc.date.available2022-02-01T11:39:46Z
dc.date.issued2021-02-02none
dc.identifier.urihttp://edoc.hu-berlin.de/18452/24672
dc.description.abstractDoping the electron-transport polymer poly{[N,N′-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)} [P(NDI2OD-T2)] with the bulky, strongly reducing metallocene 1,2,3,4,1′,2′,3′,4′-octaphenylrhodocene (OPR) leads to an increased bulk conductivity and a decreased contact resistance. While the former arises from low-level n-doping of the intrinsic polymer and increased carrier mobility due to trap-filling, the latter arises from a pronounced accumulation of dopant molecules at an indium tin oxide (ITO) substrate. Electron transfer from OPR to ITO leads to a work function reduction, which pins the Fermi level at the P(NDI2OD-T2) conduction band and thus minimizes the electron injection barrier and the contact resistance. The results demonstrate that disentangling the effects of electrode modification by the dopant and bulk doping is essential to comprehensively understand doped organic semiconductors.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectconjugated polymerseng
dc.subjectmolecular electron donoreng
dc.subjectorganic semiconductorseng
dc.subjectdopingeng
dc.subject.ddc530 Physiknone
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitennone
dc.subject.ddc670 Industrielle Fertigungnone
dc.titleDisentangling Bulk and Interface Phenomena in a Molecularly Doped Polymer Semiconductornone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/24672-8
dc.identifier.doihttp://dx.doi.org/10.18452/24054
dc.type.versionpublishedVersionnone
local.edoc.pages7none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
dc.description.versionPeer Reviewednone
dc.identifier.eissn2195-1071
dcterms.bibliographicCitation.doi10.1002/adom.202002039
dcterms.bibliographicCitation.journaltitleAdvanced optical materialsnone
dcterms.bibliographicCitation.volume9none
dcterms.bibliographicCitation.issue14none
dcterms.bibliographicCitation.articlenumber2002039none
dcterms.bibliographicCitation.originalpublishernameWiley-VCHnone
dcterms.bibliographicCitation.originalpublisherplaceWeinheimnone
bua.departmentMathematisch-Naturwissenschaftliche Fakultätnone

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