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Tetrahydroquinoline dyes with different spacers for organic dye-sensitized solar cells
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.ORCID iD: 0000-0002-4521-2870
2007 (English)In: Journal of Photochemistry and Photobiology A: Chemistry, ISSN 1010-6030, E-ISSN 1873-2666, Vol. 189, no 03-feb, 295-300 p.Article in journal (Refereed) Published
Abstract [en]

Novel organic dyes (C1-1, C1-5 and C2-1) with a tetrahydroquinoline moiety as the electron donor, different thiophene-containing electron spacers and a cyanoacrylic acid moiety as the electron acceptor have been designed and synthesized for the application in dye-sensitized solar cells (DSSCs). An interesting relationship between the dye structures, properties, and the performance of DSSCs based on these tetrahydroquinoline dyes is obtained. Although C2-1 dye, which has a rigid electron spacer, has the narrowest action spectrum among these dyes, it gives the highest solar-to-electricity conversion efficiency (eta) of 4.49% (V-oc = 600 mV, J(sc) = 11.20 mA/cm(2), ff = 0.67) of a DSSC under simulated AM 1.5 irradiation (100 mW/cm(2)). Under the same conditions, the eta value of a DSSC based on N3 dye is 6.16%.

Place, publisher, year, edition, pages
2007. Vol. 189, no 03-feb, 295-300 p.
Keyword [en]
dye-sensitized solar cell, sensitizer, tetrahydroquinoline, thiophene, coumarin dyes, high-efficiency, tio2 films, conversion, systems, light, acid
Identifiers
URN: urn:nbn:se:kth:diva-16760DOI: 10.1016/j.jphotochem.2007.02.018ISI: 000247761200021OAI: oai:DiVA.org:kth-16760DiVA: diva2:334803
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Sun, Licheng

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