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A study of oligothiophene-acceptor dyes in p-type dye-sensitized solar cells
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. Univ Isfahan, Iran.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0001-5069-3245
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
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2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 22, 18165-18177 p.Article in journal (Refereed) Published
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Text
Abstract [en]

Two new dyes, E1 and E2, equipped with triphenylamine as the electron donor, oligothiophene as the linker and different electron acceptor groups, have been designed and synthesized as photosensitizers for p-type dye-sensitized solar cells (p-DSCs). A systematic study of the effect of molecular structures on the observed photophysical properties, the electron/hole recombination process, the overall performance and the interfacial charge separation was carried out. Transient absorption spectroscopy (TAS) shows that the E1 dye with a napthoilene-1,2-benzimidazole (NBI) unit as the acceptor has a longer lifetime in the reduced state than the E2 dye with a malononitrile subunit on the NiO surface.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 6, no 22, 18165-18177 p.
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-183687DOI: 10.1039/c5ra26310gISI: 000370717900043Scopus ID: 2-s2.0-84958742377OAI: oai:DiVA.org:kth-183687DiVA: diva2:913128
Funder
Swedish Research CouncilSwedish Energy AgencyKnut and Alice Wallenberg Foundation
Note

QC 20160319

Available from: 2016-03-19 Created: 2016-03-18 Last updated: 2016-04-04Bibliographically approved

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