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Effect of different electron donating groups on the performance of dye-sensitized solar cells.
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2010 (English)In: Dyes and pigments, ISSN 0143-7208, E-ISSN 1873-3743, Vol. 84, no 1, 62-68 p.Article in journal (Refereed) Published
Abstract [en]

A series of org. sensitizers contg. identical π-spacers and electron acceptors but different, arom. amine electron-donating groups, were used in dye-sensitized solar cells to study the effect of the electron donating groups on device performance. The derived photophys. and photovoltaic properties, as well as d. functional theory calcns., revealed that the tetrahydroquinoline dye was prone to aggregate upon the surface of titanium dioxide owing to the dye's planar structure. A 45% improvement in efficiency of a tetrahydroquinoline dye based cell was achieved when chenodeoxycholic acid was employed as co-adsorbent. However, the airscrew type of triphenylamine unit and Y type structure of the substituted phenothiazine framework suppressed dye aggregation on titanium dioxide. The efficiency of a phenothiazine dye-based cell fabricated using satd. co-adsorbent in dichloromethane was only 15% greater than that achieved in the absence of co-adsorbent. Electrochem. Impedance Spectroscopy was used to det. the interfacial charge transfer process occurring in solar cells that employed different dyes in both the absence and presence of chenodeoxycholic acid as co-adsorbent. [on SciFinder(R)]

Place, publisher, year, edition, pages
2010. Vol. 84, no 1, 62-68 p.
Keyword [en]
dye sensitized solar cell electron donating group
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-218491DOI: 10.1016/j.dyepig.2009.06.014OAI: oai:DiVA.org:uu-218491DiVA: diva2:695801
Note

CAPLUS AN 2009:1071288(Journal)

Available from: 2014-02-12 Created: 2014-02-12 Last updated: 2017-12-06

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Tian, Haining

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