Efficient p-type dye-sensitized solar cells based on disulfide/thiolate electrolytes
2013 (English)In: Nanoscale, ISSN 2040-3364, Vol. 5, no 17, 7963-7969 p.Article in journal (Refereed) Published
Herein, an organic redox couple 1-methy-1H-tetrazole-5-thiolate (T-) and its disulfide dimer (T-2) redox shuttle, as an electrolyte, is introduced in a p-type dye-sensitized solar cell (DSC) on the basis of an organic dye (P1) sensitizer and nanocrystal CuCrO2 electrode. Using this iodide-free transparent redox electrolyte in conjunction with the sensitized heterojunction, we achieve a high open-circuit voltage of over 300 mV. An optimal efficiency of 0.23% is obtained using a CoS counter electrode and an optimized electrolyte composition under AM 1.5 G 100 mW cm(-2) light illumination which, to the best of our knowledge, represents the highest efficiency that has so far been reported for p-type DSCs using organic redox couples.
Place, publisher, year, edition, pages
2013. Vol. 5, no 17, 7963-7969 p.
Counter electrodes, Dye-Sensitized solar cell, Dye-sensitized solar cells, Electrolyte compositions, Light illumination, Optimal efficiency, Organic redox couples, Redox electrolytes
IdentifiersURN: urn:nbn:se:kth:diva-129423DOI: 10.1039/c3nr02169fISI: 000322958800039ScopusID: 2-s2.0-84881538838OAI: oai:DiVA.org:kth-129423DiVA: diva2:652402
QC 201309302013-09-302013-09-302013-09-30Bibliographically approved