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Two Novel Carbazole Dyes for Dye-Sensitized Solar Cells with Open-Circuit Voltages up to 1 V Based on Br-/Br3- Electrolytes.
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2009 (English)In: Organic Letters, ISSN 1523-7060, E-ISSN 1523-7052, Vol. 11, no 23, 5542-5545 p.Article in journal (Refereed) Published
Abstract [en]

Dye-sensitized solar cells (DSCs) based on two novel carbazole dyes and a Br-/Br3- redox mediator in dry CH3CN solns. as electrolytes yielded a Voc of 1.156 V and a η value of 3.68% and a Voc of 0.939 V and a η value of 5.22% under simulated AM 1.5, resp. The dyes have more pos. HOMO levels (1.59 and 1.38 V vs NHE) than the redox potential of Br-/Br3--based electrolytes, which have sufficient driving force to regenerate dyes. Under similar conditions with an I-/I3- instead of a Br-/Br3- redox mediator, DSCs sensitized by the dyes produced a Voc of 0.696 V and a η value of 2.36% and a Voc of 0.621 V and a η value of 4.10%, resp. [on SciFinder(R)]

Place, publisher, year, edition, pages
2009. Vol. 11, no 23, 5542-5545 p.
Keyword [en]
carbazole dye sensitizer solar cell, bromide electrolyte carbazole dye sensitizer solar cell
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-218489DOI: 10.1021/ol9022936OAI: oai:DiVA.org:uu-218489DiVA: diva2:695803

CAPLUS AN 2009:1385744(Journal)

Available from: 2014-02-12 Created: 2014-02-12 Last updated: 2014-02-12

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