Highly Efficient CdS Quantum Dot-Sensitized Solar Cells Based on a Modified Polysulfide Electrolyte
2011 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 133, no 22, 8458-8460 p.Article in journal (Refereed) Published
A modified polysulfide redox couple, [(CH3)(4)N](2)S/[(CH3)(4)N](2)S-n, in an organic solvent (3-methoxypropionitrile) was employed in CdS quantum dot (QD)-sensitized solar cells (QDSSCs), and an unprecedented energy conversion efficiency of up to 3.2% was obtained under AM 1.5 G illumination. The QDs were linked to nanoporous TiO2 via covalent bonds by using thioglycolic acid, and chemical bath deposition in an organic solvent was then used to prepare the QDSSCs, facilitating high wettability and superior penetration capability of the TiO2 films. A very high fill factor of 0.89 was observed with the optimized QDSSCs.
Place, publisher, year, edition, pages
2011. Vol. 133, no 22, 8458-8460 p.
IdentifiersURN: urn:nbn:se:uu:diva-155582DOI: 10.1021/ja201841pISI: 000291414400019OAI: oai:DiVA.org:uu-155582DiVA: diva2:427525