A study of oligothiophene–acceptor dyes in p-type dye-sensitized solar cells
2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 22, 18165-18177 p.Article in journal (Refereed) Published
Two new dyes, E1 and E2, equipped with triphenylamine as the electron donor, oligothiophene as the linkerand different electron acceptor groups, have been designed and synthesized as photosensitizers for p-typedye-sensitized solar cells (p-DSCs). A systematic study of the effect of molecular structures on the observedphotophysical properties, the electron/hole recombination process, the overall performance and theinterfacial charge separation was carried out. Transient absorption spectroscopy (TAS) shows that the E1dye with a napthoilene-1,2-benzimidazole (NBI) unit as the acceptor has a longer lifetime in the reducedstate than the E2 dye with a malononitrile subunit on the NiO surface.
Place, publisher, year, edition, pages
2016. Vol. 6, no 22, 18165-18177 p.
IdentifiersURN: urn:nbn:se:uu:diva-280839DOI: 10.1039/c5ra26310gISI: 000370717900043OAI: oai:DiVA.org:uu-280839DiVA: diva2:912157
FunderSwedish Research CouncilSwedish Energy AgencyKnut and Alice Wallenberg FoundationÅForsk (Ångpanneföreningen's Foundation for Research and Development), 14-452Stiftelsen Olle Engkvist Byggmästare