Solvent effect and device optimization of diketopyrrolopyrrole and carbazole copolymer based solar cells

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DOIResolve DOI: http://doi.org/10.1016/j.orgel.2010.03.004
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TypeArticle
Journal titleOrganic Electronics
Volume11
Issue6
Pages10531058; # of pages: 6
SubjectSolar cells; Polymer structure; Solvent effect; Carbazole
AbstractBulk heterojunction organic photovoltaic cells using blends of poly[N-90-heptadecanyl-2,7carbazole-alt-3,6-bis(thiophen-5-yl)-2,5-dioctyl-2,5-dihydropyrrolo[3,4-]pyrrole-1,4-dione] (PCBTDPP) and [6,6]-phenyl-C61-butyric acid methyl ester (PC60BM) or [6,6]-phenyl-C71-butyric acid methyl ester (PC70BM) as electron donor and acceptor were fabricated and characterized. Devices made from 1,2-dichlorobenzene solution demonstrated better performance in terms of short-circuit current density, open-circuit voltage and power conversion efficiency, as compared to the devices made from chloroform and chlorobenzene solutions. By optimizing the donor/acceptor ratio and the thickness of the active layer, a power conversion efficiency of 3.2% was achieved on devices with an active device area of 1 cm2, under 100 mW/cm2 of simulated AM1.5 irradiation.
Publication date
LanguageEnglish
AffiliationNRC Institute for Microstructural Sciences; National Research Council Canada
Peer reviewedYes
NPARC number17379837
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Record identifier2d29098c-6b9e-425a-b87a-c98a38c672ba
Record created2011-03-26
Record modified2016-05-09
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