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Organic D-pi-A sensitizer with pyridinium as the acceptor group for dye-sensitized solar cells
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2014 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 4, no 65, 34644-34648 p.Article in journal (Refereed) Published
Abstract [en]

Two metal-free organic dyes with triphenylamide (TPA) as the donor group and pyridinium (m-carboxyl-N-methylpyridinium and N-methylcarboxylpyridinium) as the acceptor and anchoring group have been synthesized for dye-sensitized solar cells (DSSCs). A systematic investigation of the relationship between the structures and physical, electrochemical and photovoltaic properties has been conducted. The devices sensitized by TJ101 which employed m-carboxyl-N-methylpyridinium as the acceptor group has achieved a conversion efficiency of 5.4% (J(sc) = 10.8 mA cm(-2), V-oc = 680 mV, FF = 74.2%) under AM 1.5 irradiation. In contrast, much lower efficiency of 4.0% was obtained when a reference dye TJ101R with m-carboxylpyridine as the acceptor group was employed as a sensitizer.

Place, publisher, year, edition, pages
2014. Vol. 4, no 65, 34644-34648 p.
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Chemical Sciences
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URN: urn:nbn:se:kth:diva-153414DOI: 10.1039/c4ra04407jISI: 000341287500057Scopus ID: 2-s2.0-84906279901OAI: oai:DiVA.org:kth-153414DiVA: diva2:753681
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QC 20141008

Available from: 2014-10-08 Created: 2014-10-03 Last updated: 2017-12-05Bibliographically approved

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Sun, Licheng

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