Change search
ReferencesLink to record
Permanent link

Direct link
Geometrical and energetical structural changes in organic dyes for dye-sensitized solar cells probed using photoelectron spectroscopy and DFT
Stockholm University, Faculty of Science, Department of Physics.
Show others and affiliations
Number of Authors: 14
2016 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 18, no 1, 252-260 p.Article in journal (Refereed) Published
Abstract [en]

The effects of alkoxy chain length in triarylamine based donor acceptor organic dyes are investigated with respect to the electronic and molecular surface structures on the performance of solar cells and the electron lifetime. The dyes were investigated when adsorbed on TiO2 in a configuration that can be used for dye sensitized solar cells (DSCs). Specifically, the two dyes D35 and D45 were compared using photoelectron spectroscopy (PES) and density functional theory (DFT) calculations. The differences in solar cell characteristics when longer alkoxy chains are introduced in the dye donor unit are attributed to geometrical changes in dye packing while only minor differences were observed in the electronic structure. A higher dye load was observed for D45 on TiO2. However, D35 based solar cells result in higher photocurrent although the dye load is lower. This is explained by different geometrical structures of the dyes on the surface.

Place, publisher, year, edition, pages
2016. Vol. 18, no 1, 252-260 p.
National Category
Chemical Sciences Physical Sciences
URN: urn:nbn:se:su:diva-127280DOI: 10.1039/c5cp04589dISI: 000368755500027OAI: diva2:943766
Available from: 2016-06-28 Created: 2016-03-01 Last updated: 2016-06-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Josefsson, IdaOdelius, Michael
By organisation
Department of Physics
In the same journal
Physical Chemistry, Chemical Physics - PCCP
Chemical SciencesPhysical Sciences

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: 8 hits
ReferencesLink to record
Permanent link

Direct link