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Stable dye-sensitized solar cells based on organic chromophores and ionic liquid 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: Solar Energy, ISSN 0038-092X, Vol. 85, no 6, 1189-1194 p.Article in journal (Refereed) Published
Abstract [en]

A series of polyene-diphenylaniline based organic dyes (coded as D5, D7, D9 and D11) have been reported for the application in ionic liquid electrolyte based dye-sensitized solar cells. The effects of substitution of organic dyes on the photovoltaic performance have been investigated, which show addition of methoxy groups on the triphenylamine donor group increases short-circuit current, open-circuit voltage and photovoltaic performance. A power conversion efficiency of 6.5% under AM 1.5 sunlight at 100 mW/cm(2) has been obtained with D11 dye in combination with a binary ionic liquid electrolyte, which when subjected to accelerated testing under one sun light soaking at 60 degrees C, the efficiency remained 90% of initial efficiency.

Place, publisher, year, edition, pages
2011. Vol. 85, no 6, 1189-1194 p.
Keyword [en]
Organic dye, Ionic liquid, Nanocrystalline, Dye-sensitized solar cell, Impedance
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-35599DOI: 10.1016/j.solener.2011.02.025ISI: 000291832600004ScopusID: 2-s2.0-79956204412OAI: diva2:429773
Swedish Research CouncilKnut and Alice Wallenberg Foundation
QC 20110705Available from: 2011-07-05 Created: 2011-07-04 Last updated: 2011-07-05Bibliographically approved

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Hagberg, Daniel P.Karlsson, Karl MartinSun, Licheng
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