Development of high efficiency 100% aqueous cobalt electrolyte dye-sensitised solar cells
2016 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 18, no 12, 8419-8427 p.Article in journal (Refereed) Published
In this study we report the application of three cobalt redox shuttles in 100% aqueous electrolyte dye-sensitised solar cells (DSCs). By using chloride as a counter-ion for cobalt bipyridine, cobalt phenanthroline and cobalt bipyridine pyrazole, the redox shuttles were made water soluble; no surfactant or further treatment was necessary. A simple system of merely the redox shuttles and 1-methylbenzimidazole (MBI) in water as an electrolyte in combination with an organic dye and a mesoporous PEDOT counter electrode was optimised. The optimisation resulted in an average efficiency of 5.5% (record efficiency of 5.7%) at 1 sun. The results of this study present promising routes for further improvements of aqueous cobalt electrolyte DSCs.
Place, publisher, year, edition, pages
2016. Vol. 18, no 12, 8419-8427 p.
Dye, solar cell, water, electrolyte, titanium dioxide
Research subject Chemistry with specialization in Physical Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-280289DOI: 10.1039/C6CP00264AISI: 000372249100012PubMedID: 26931779OAI: oai:DiVA.org:uu-280289DiVA: diva2:910470