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dc.contributor.authorGerhard, Marina
dc.contributor.authorGehrig, Dominik
dc.contributor.authorHoward, Ian A.
dc.contributor.authorArndt, Andreas P.
dc.contributor.authorBilal, Mühenad
dc.contributor.authorRahimi-Iman, Arash
dc.contributor.authorLemmer, Uli
dc.contributor.authorLaquai, Frédéric
dc.contributor.authorKoch, Martin
dc.date.accessioned2016-08-08T11:03:50Z
dc.date.available2016-08-08T11:03:50Z
dc.date.issued2016-04-27
dc.identifier.citationMarina Gerhard ; Dominik Gehrig ; Ian A. Howard ; Andreas P. Arndt ; Mühenad Bilal ; Arash Rahimi-Iman ; Uli Lemmer ; Frédéric Laquai and Martin Koch " Loss mechanisms in organic solar cells based on perylene diimide acceptors studied by time-resolved photoluminescence ", Proc. SPIE 9895, Organic Photonics VII, 98950H (April 27, 2016); doi:10.1117/12.2227672; http://dx.doi.org/10.1117/12.2227672
dc.identifier.doi10.1117/12.2227672
dc.identifier.urihttp://hdl.handle.net/10754/618026
dc.description.abstractIn organic photovoltaics (OPV), perylene diimide (PDI) acceptor materials are promising candidates to replace the commonly used, but more expensive fullerene derivatives. The use of alternative acceptor materials however implies new design guidelines for OPV devices. It is therefore important to understand the underlying photophysical processes, which either lead to charge generation or geminate recombination. In this contribution, we investigate radiative losses in a series of OPV materials based on two polymers, P3HT and PTB7, respectively, which were blended with different PDI derivatives. Our time-resolved photoluminescence measurements (TRPL) allow us to identify different loss mechanisms by the decay characteristics of several excitonic species. In particular, we find evidence for unfavorable morphologies in terms of large-scale pure domains, inhibited exciton transport and incomplete charge transfer. Furthermore, in one of the P3HT-blends, an interfacial emissive charge transfer (CT) state with strong trapping character is identified. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
dc.description.sponsorshipFinancial support of this contribution from the German Academic Exchange Service (DAAD) is gratefully acknowledged.
dc.publisherSPIE-Intl Soc Optical Eng
dc.relation.urlhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2227672
dc.rightsCopyright 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
dc.titleLoss mechanisms in organic solar cells based on perylene diimide acceptors studied by time-resolved photoluminescence
dc.typeConference Paper
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalOrganic Photonics VII
dc.conference.dateApril 03, 2016
dc.conference.nameOrganic Photonics VII
dc.conference.locationBrussels, Belgium
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionFaculty of Physics and Material Sciences Center, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany
dc.contributor.institutionMax Planck Research Group for Organic Optoelectronics, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
dc.contributor.institutionInstitute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
dc.contributor.institutionLight Technology Institute, Karlsruhe Institute of Technology, Kaiserstrasse 12, D-76131 Karlsruhe, Germany
kaust.personLaquai, Frédéric
refterms.dateFOA2018-06-13T12:06:03Z


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