Synthesis and photovoltaic properties of new [1,2,5]thiadiazolo[3,4-c]pyridine-based organic Broadly absorbing sensitizers for dye-sensitized solar cells
2014 (English)In: Tetrahedron, ISSN 0040-4020, E-ISSN 1464-5416, Vol. 70, no 25, 3901-3908 p.Article in journal (Refereed) Published
In this paper, by introducing [1,2,5]thiadiazolo[3,4-c]pyridine (PT) as an auxiliary acceptor into the molecular design of organic sensitizers, we have synthesized four new dyes (PT1 -P14) for dye-sensitized solar cells (DSSCs) with triphenylamine or N,N-diphenylthiophen-2-amine as the donor units and thiophene or benzene as the pi-bridges, respectively. All the structures, optical and electrochemical properties were fully characterized. Nanocrystalline TiO2 dye-sensitized solar cells were also fabricated using these dyes. Among them, PT2-based DSSCs showed the highest overall conversion efficiency of 6.11% with V-oc=668 mV, J(sc)=12.61 mA cm(-2) and a fill factor (FF)=0.74 after a chenodeoxycholic acid (CDCA) treatment under standard illumination condition (100 mW cm(-2) simulated AM 1.5 solar light).
Place, publisher, year, edition, pages
2014. Vol. 70, no 25, 3901-3908 p.
[1, 2, 5]Thiadiazolo[3, 4-c]pyridine, N, N-Diphenylthiophen-2-amine, Sensitizer, Dye-sensitized solar cells
IdentifiersURN: urn:nbn:se:kth:diva-147408DOI: 10.1016/j.tet.2014.04.039ISI: 000336699900009ScopusID: 2-s2.0-84900815016OAI: oai:DiVA.org:kth-147408DiVA: diva2:731650
QC 201407022014-07-022014-06-272014-07-02Bibliographically approved