Enhanced Performance of Supported HfO2 Counter Electrodes for Redox Couples Used in Dye-Sensitized Solar Cells
2014 (English)In: ChemSusChem, ISSN 1864-5631, Vol. 7, no 2, 442-450 p.Article in journal (Refereed) Published
Mesoporous-graphitic-carbon-supported HfO2 (HfO2-MGC) nanohybrids were synthesized by using a soft-template route. Characterization and a systematic investigation of the catalytic properties, stability, and catalytic mechanism were performed for HfO2-MGC counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). The new HfO2-MGC as a CE in DSSCs showed a surprisingly high efficiency of 7.75% for the triiodide/iodide redox couple and 3.69% for the disulfide/thiolate redox couple, greater than the Pt electrode in the corresponding electrolyte system, which opens up a possibility for its practical application.
Place, publisher, year, edition, pages
2014. Vol. 7, no 2, 442-450 p.
density functional calculations, dye/pigments, electrochemistry, energy conversion, hafnium
IdentifiersURN: urn:nbn:se:uu:diva-228062DOI: 10.1002/cssc.201301140ISI: 000336804000014OAI: oai:DiVA.org:uu-228062DiVA: diva2:732018