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Synthesis, characterization and application of trans-D–B–A-porphyrin based dyes in dye-sensitized solar cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
27637 44034 2011 7 PDF Available
Title
Synthesis, characterization and application of trans-D–B–A-porphyrin based dyes in dye-sensitized solar cells
Abstract

A series of metal-free trans-D–B–A porphyrin dyes have been synthesized and characterized as photo-sensitizers for dye-sensitized solar cells (DSSCs). These dye molecules contain a porphyrin unit as a π-bridge, a substituted phenyl group as an electron donor and cyanoacrylic acid or carboxylic acid group as an electron acceptor (anchoring groups). This phenomenon is more pronounced for porphyrins (Dye 4 and Dye 5) that have conjugated diphenyl aniline at the opposite side of the anchoring group. A solar conversion efficiency of 2.38% has been achieved with a short circuit current (Jsc) of 7.63 mA/cm2, an open circuit voltage (Voc) of 0.613 V and a fill factor (ff) of 51.0% for Dye 5 under standard global AM 1.5 solar irradiation. Results of time-dependent density functional theory (TD-DFT) calculations on these five organic dyes support the electrochemical data.

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Keywords
Dye-sensitized solar cells; Porphyrin; Push–pull; Charge-separation; Aggregation
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Synthesis, characterization and application of trans-D–B–A-porphyrin based dyes in dye-sensitized solar cells
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 218, Issues 2–3, 25 February 2011, Pages 219–225
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
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