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Article: A solution-processable diketopyrrolopyrrole dye molecule with (fluoronaphthyl)thienyl endgroups for organic solar cells

TitleA solution-processable diketopyrrolopyrrole dye molecule with (fluoronaphthyl)thienyl endgroups for organic solar cells
Authors
KeywordsDiketopyrrolopyrrole
Dye
(Fluoronaphthyl)thienyl
Organic solar cells
Small molecule
Solution processability
Issue Date2014
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/dyepig
Citation
Dyes and Pigments, 2014, v. 101, p. 51-57 How to Cite?
AbstractA solution-processable dye molecule DPP(TFNa)2 that consists of diketopyrrolopyrrole (DPP) as the core and 5-(6-fluoro-2-naphthyl)thienyl as the endgroups is presented for bulk heterojunction organic solar cells. DPP(TFNa)2 is a crystalline solid with a Tm of approximately 216 °C. X-ray diffraction experiments reveal that thermal annealing increases crystallinity of the as-cast film, thus beneficial to the absorption and charge-transport properties. DPP(TFNa)2 exhibits two reversible one-electron oxidation waves at 0.87 and 1.16 V vs. Ag/AgCl reference electrode, respectively. Fitting the space-charge-limited current characteristics in a hole-only device results in a hole mobility of ∼2.7 × 10−4 cm2 V−1 s−1 at low voltages for DPP(TFNa)2. A preliminary characterization of the solar cell (ITO/PEDOT:PSS/DPP(TFNa)2:PC61BM/Al) yields a power conversion efficiency of approximately 3.0% under simulated AM 1.5G illumination (66.4 and 100 mW cm−2, respectively). The fluorine effects on material properties such as morphology, absorption, electrochemistry, charge transport and the resulting device performance are discussed.
Persistent Identifierhttp://hdl.handle.net/10722/202882
ISSN
2017 Impact Factor: 3.767
2015 SCImago Journal Rankings: 1.011
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhou, R-
dc.contributor.authorLi, QD-
dc.contributor.authorLi, XC-
dc.contributor.authorLu, SM-
dc.contributor.authorWang, LP-
dc.contributor.authorZhang, CH-
dc.contributor.authorHuang, J-
dc.contributor.authorChen, P-
dc.contributor.authorLi, F-
dc.contributor.authorZhu, XH-
dc.contributor.authorChoy, WCH-
dc.contributor.authorPeng, J-
dc.contributor.authorCao, Y-
dc.contributor.authorGong, X-
dc.date.accessioned2014-09-19T10:09:14Z-
dc.date.available2014-09-19T10:09:14Z-
dc.date.issued2014-
dc.identifier.citationDyes and Pigments, 2014, v. 101, p. 51-57-
dc.identifier.issn0143-7208-
dc.identifier.urihttp://hdl.handle.net/10722/202882-
dc.description.abstractA solution-processable dye molecule DPP(TFNa)2 that consists of diketopyrrolopyrrole (DPP) as the core and 5-(6-fluoro-2-naphthyl)thienyl as the endgroups is presented for bulk heterojunction organic solar cells. DPP(TFNa)2 is a crystalline solid with a Tm of approximately 216 °C. X-ray diffraction experiments reveal that thermal annealing increases crystallinity of the as-cast film, thus beneficial to the absorption and charge-transport properties. DPP(TFNa)2 exhibits two reversible one-electron oxidation waves at 0.87 and 1.16 V vs. Ag/AgCl reference electrode, respectively. Fitting the space-charge-limited current characteristics in a hole-only device results in a hole mobility of ∼2.7 × 10−4 cm2 V−1 s−1 at low voltages for DPP(TFNa)2. A preliminary characterization of the solar cell (ITO/PEDOT:PSS/DPP(TFNa)2:PC61BM/Al) yields a power conversion efficiency of approximately 3.0% under simulated AM 1.5G illumination (66.4 and 100 mW cm−2, respectively). The fluorine effects on material properties such as morphology, absorption, electrochemistry, charge transport and the resulting device performance are discussed.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/dyepig-
dc.relation.ispartofDyes and Pigments-
dc.subjectDiketopyrrolopyrrole-
dc.subjectDye-
dc.subject(Fluoronaphthyl)thienyl-
dc.subjectOrganic solar cells-
dc.subjectSmall molecule-
dc.subjectSolution processability-
dc.titleA solution-processable diketopyrrolopyrrole dye molecule with (fluoronaphthyl)thienyl endgroups for organic solar cells-
dc.typeArticle-
dc.identifier.emailLu, SM: shunmian@gmail.com-
dc.identifier.emailChen, P: chenping@eee.hku.hk-
dc.identifier.emailChoy, WCH: chchoy@eee.hku.hk-
dc.identifier.authorityChoy, WCH=rp00218-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.dyepig.2013.09.022-
dc.identifier.scopuseid_2-s2.0-84885344324-
dc.identifier.hkuros238578-
dc.identifier.volume101-
dc.identifier.spage51-
dc.identifier.epage57-
dc.identifier.isiWOS:000330819500008-
dc.publisher.placeUnited Kingdom-

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