Molten and Solid Metal-Iodide-Doped Trialkylsulphonium Iodides and Polyiodides as Electrolytes in Dye-Sensitized Nanocrystalline Solar Cells
2004 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, Vol. 82, no 3, 345-360 p.Article in journal (Refereed) Published
The conductivity and solar cell performance of metal-iodide-doped trialkylsulphonium iodides and polyiodides have been investigated as electrolytes in dye-sensitized nanocrystalline solar cells (DNSCs). Nine different metal-iodide-containing (R2R′S)I with additional iodine provided overall solar-to-electric energy conversion efficiencies of over 2%, while used as electrolytes in DNSCs in simulated AM 1.5 solar light at the light intensity of 100Wm-2. The highest overall conversion efficiency, 3.1%, was achieved by using the electrolyte (Bu2MeS)I: AgI:I2 in the proportions (1:0.03:0.05). The effects from 4-tert-butylpyridine treatment of the electrodes were studied. The effects of metal-iodide doping were also investigated with respect to speciation in the electrolytes and potential influence on electrochemical conductivity.
Place, publisher, year, edition, pages
2004. Vol. 82, no 3, 345-360 p.
Dye-sensitized nanocrystalline solar cell, Electrolyte, Metal iodide, Room-temperature molten salt, Trialkylsulphonium iodide
IdentifiersURN: urn:nbn:se:kth:diva-6710DOI: 10.1016/j.solmat.2003.12.005ISI: 000221289200002ScopusID: 2-s2.0-2142642337OAI: oai:DiVA.org:kth-6710DiVA: diva2:11497
QC 201009232005-09-222005-09-222011-10-26Bibliographically approved