Change search
ReferencesLink to record
Permanent link

Direct link
Effect of different electron donating groups on the performance of dye-sensitized solar cells
Show others and affiliations
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 organic sensitizers containing identical pi-spacers and electron acceptors but different, aromatic 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 photophysical and photovoltaic properties, as well as density functional theory calculations, 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 saturated co-adsorbent in dichloromethane was only 15% greater than that achieved in the absence of co-adsorbent. Electrochemical Impedance Spectroscopy was used to determine 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.

Place, publisher, year, edition, pages
2010. Vol. 84, no 1, 62-68 p.
National Category
Organic Chemistry
URN: urn:nbn:se:kth:diva-18930DOI: 10.1016/j.dyepig.2009.06.014ISI: 000271375900008OAI: diva2:336977

QC 20150624

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2015-06-24Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Cong, Jiayan
By organisation
Organic ChemistryCentre of Molecular Devices, CMD
In the same journal
Dyes and pigments
Organic Chemistry

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 52 hits
ReferencesLink to record
Permanent link

Direct link