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Highly Efficient CdS Quantum Dot-Sensitized Solar Cells Based on a Modified Polysulfide Electrolyte
KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
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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
Abstract [en]

A modified polysulfide redox couple, [(CH(3))(4)N](2)S/[(CH(3))(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 TiO(2) 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 TiO(2) 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.
Keyword [en]
TIO2 FILMS, NANOCRYSTALLINE TIO2, LOW-COST, PHOTOELECTRODES, ENERGY, ARRAY, GOLD
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-40256DOI: 10.1021/ja201841pISI: 000291414400019Scopus ID: 2-s2.0-79957994976OAI: oai:DiVA.org:kth-40256DiVA: diva2:440731
Funder
Knut and Alice Wallenberg Foundation
Note
QC 20110913Available from: 2011-09-13 Created: 2011-09-13 Last updated: 2017-12-08Bibliographically approved

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Sun, Licheng

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