Effect of dihedral angle of bridge unit on the performance of dye-sensitized solar cell
2016 (English)In: Chinese Chemical Letters, ISSN 1001-8417, E-ISSN 1878-5964, Vol. 27, no 6, 927-932 p.Article in journal (Refereed) PublishedText
In this work, we investigated the impact of bridge unit on their photo-physical and photovoltaic performance. Increased planarity of the dyes effectively extended the absorption, but reduces the efficiency. Interestingly we found that dyes with a thiophene conjugate unit showed inferior performance when compared with benzene. Theoretical computation indicates a large dihedral angle in the latter system. EIS analysis evidenced the severe recombination in the thiophene-based dye, showing that good planarity may lead to dye aggregation and decrease the efficiency.
Place, publisher, year, edition, pages
2016. Vol. 27, no 6, 927-932 p.
Planarity, Recombination, Dihedral angle, Dye-loading, Solar cell
IdentifiersURN: urn:nbn:se:kth:diva-190511DOI: 10.1016/j.cclet.2016.04.010ISI: 000379271500025ScopusID: 2-s2.0-84973115796OAI: oai:DiVA.org:kth-190511DiVA: diva2:953589
QC 201608182016-08-182016-08-122016-08-18Bibliographically approved