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Improved efficiency of a thiophene linked ruthenium polypyridine complex for dry dye-sensitized solar cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
28341 44071 2007 8 PDF Available
Title
Improved efficiency of a thiophene linked ruthenium polypyridine complex for dry dye-sensitized solar cells
Abstract

We report herein the preparation, the electrochemical, the absorption and the emission properties of a new heteroleptic bisterpyridine ruthenium complex. The first terpyridine is functionalized, on the 4′ position, by a phosphonic acid group and the second terpyridine bears in the 4′ position a tert-thiophenyl unit attached via an ethanyl spacer. The latter complex was tested in dye-sensitized solar cells using the liquid electrolyte (I2/LiI/tert-butylpyridine/propylene carbonate) or the solid poly(3-octylthiophene) as a hole conductor. It displays an improved photovoltaic photoconversion efficiency compared to the analogous complex in which the tert-thiophene is directly linked to the terpyridine ligand. This study shows that the covalent attachment of a thiophene residue on the sensitizer is a promising strategy for the development of solid-state dye-sensitized solar cells and it highlights the benefit of introducing a non-conjugated spacer between the thiophenyl unit and the polypyridine ruthenium sensitizer.

Keywords
Dye-sensitized solar cell; Ruthenium sensitizer; Solid-state solar cell; Photoelectrochemistry; Thiophene
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Improved efficiency of a thiophene linked ruthenium polypyridine complex for dry dye-sensitized solar cells
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 186, Issues 2–3, 25 February 2007, Pages 135–142
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us