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Harvesting triplet excitons for application in polymer solar cells

URI
http://hdl.handle.net/10355/8195
dc.contributor.authorArif, Mohammad, 1974-eng
dc.contributor.authorYang, K.eng
dc.contributor.authorLi, L.eng
dc.contributor.authorYu, Ping, Ph. D.eng
dc.contributor.authorGuha, Suchieng
dc.contributor.authorGangopadhyay, Shubhraeng
dc.contributor.authorFörster, M.eng
dc.contributor.authorScherf, Ullricheng
dc.date.issued2009eng
dc.descriptiondoi:10.1063/1.3082081eng
dc.description.abstractTriplet enhanced ladder-type poly (para-phenylene) polymer (PhLPPP) with covalently bound trace amounts of palladium blended with a fullerene derivative [[6,6]-phenyl C61-butyric acid methyl ester (PCBM)] shows power conversion efficiencies (PCE) almost ten times greater than with pristine ladder-type polymer (with no palladium atom) blended with PCBM. The steady state optical properties of the triplet and nontriplet-enhanced polymers are comparable; the enhanced PCE and external quantum efficiency in PhLPPP photovoltaics are attributed to the presence of long-lived mobile triplet excitons. Furthermore, the luminescence from PhLPPP blends measured in a delayed setup correlates very well with the efficiency of the solar cells.eng
dc.description.sponsorshipThis research was partially supported by grants from the U.S. National Science Foundation Grant No. ECCS-0823563 and the U.S. Army.eng
dc.identifier.citationAppl. Phys. Lett. 94, 063307 (2009)eng
dc.identifier.issn0003-6951eng
dc.identifier.urihttp://hdl.handle.net/10355/8195eng
dc.languageEnglisheng
dc.publisherAmerican Institute of Physicseng
dc.relation.ispartofElectrical and Computer Engineering publications (MU)eng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. College of Engineering. Department of Electrical and Computer Engineeringeng
dc.rightsOpenAccess.eng
dc.rights.licenseThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.eng
dc.subjectexcitonseng
dc.subjectluminescenceeng
dc.subjectpolymer blendseng
dc.subject.lcshOrganic semiconductorseng
dc.subject.lcshSolar cellseng
dc.subject.lcshPhosphorescenceeng
dc.subject.lcshPhotovoltaic power generationeng
dc.titleHarvesting triplet excitons for application in polymer solar cellseng
dc.typeArticleeng


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