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2020-07-06Zeitschriftenartikel DOI: 10.18452/22283
An Organic Borate Salt with Superior p‐Doping Capability for Organic Semiconductors
dc.contributor.authorWegner, Berthold
dc.contributor.authorLungwitz, Dominique
dc.contributor.authorMansour, Ahmed E.
dc.contributor.authorTait, Claudia
dc.contributor.authorTanaka, Naoki
dc.contributor.authorZhai, Tianshu
dc.contributor.authorDuhm, Steffen
dc.contributor.authorForster, Michael
dc.contributor.authorBehrends, Jan
dc.contributor.authorShoji, Yoshiaki
dc.contributor.authorOpitz, Andreas
dc.contributor.authorScherf, Ullrich
dc.contributor.authorList-Kratochvil, Emil J.W.
dc.contributor.authorFukushima, Takanori
dc.contributor.authorKoch, Norbert
dc.date.accessioned2020-12-30T14:05:33Z
dc.date.available2020-12-30T14:05:33Z
dc.date.issued2020-07-06none
dc.identifier.other10.1002/advs.202001322
dc.identifier.urihttp://edoc.hu-berlin.de/18452/22912
dc.description.abstractMolecular doping allows enhancement and precise control of electrical properties of organic semiconductors, and is thus of central technological relevance for organic (opto‐) electronics. Beyond single‐component molecular electron acceptors and donors, organic salts have recently emerged as a promising class of dopants. However, the pertinent fundamental understanding of doping mechanisms and doping capabilities is limited. Here, the unique capabilities of the salt consisting of a borinium cation (Mes2B+; Mes: mesitylene) and the tetrakis(penta‐fluorophenyl)borate anion [B(C6F5)4]− is demonstrated as p‐type dopant for polymer semiconductors. With a range of experimental methods, the doping mechanism is identified to comprise electron transfer from the polymer to Mes2B+, and the positive charge on the polymer is stabilized by [B(C6F5)4]−. Notably, the former salt cation leaves during processing and is not present in films. The anion [B(C6F5)4]− even enables the stabilization of polarons and bipolarons in poly(3‐hexylthiophene), not yet achieved with other molecular dopants. From doping studies with high ionization energy polymer semiconductors, the effective electron affinity of Mes2B+[B(C6F5)4]− is estimated to be an impressive 5.9 eV. This significantly extends the parameter space for doping of polymer 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.subjectbipolaronseng
dc.subjectborate salteng
dc.subjectdopingeng
dc.subjectorganic semiconductorseng
dc.subjectpolaronseng
dc.subject.ddc500 Naturwissenschaften und Mathematiknone
dc.titleAn Organic Borate Salt with Superior p‐Doping Capability for Organic Semiconductorsnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/22912-3
dc.identifier.doihttp://dx.doi.org/10.18452/22283
dc.type.versionpublishedVersionnone
local.edoc.container-titleAdvanced sciencenone
local.edoc.pages15none
local.edoc.anmerkungThis article was supported by the Open Access Publication Fund of Humboldt-Universität zu Berlin.none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameWiley-VCHnone
local.edoc.container-publisher-placeWeinheimnone
local.edoc.container-volume7none
local.edoc.container-issue17none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber2001322none
dc.identifier.eissn2198-3844

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