Title

Aminophenyl/carboxyphenylporphyrins as Sensitizers for Dye-sensitized Solar Cells

Published In

Journal of Porphyrins and Phthalocyanines

Document Type

Citation

Publication Date

4-2016

Abstract

A series of tetraphenyl meso-substituted porphyrins with either p-amino or p-carboxy substituents has been studied as dyes for standard dye-sensitized solar cells (DSSCs). The porphyrins with greater numbers of amino groups generally show greater efficiency, primarily due to higher photocurrents; open-circuit voltage and fill factors are comparable. The most efficient sensitizer was the trans disubstituted zinc porphyrin, with an overall solar energy conversion efficiency of 5.66%, slightly higher than the triamino zinc porphyrin at 5.18%. The improved efficiency is attributed to the well known push–pull effect in porphyrinsensitized DSSCs with electrondonating groups opposite to the electronwithdrawing anchoring (carboxy) groups. It is suggested that porphyrin derivatives with cis diaminophenyl groups show somewhat diminished efficiency due to difficulties with regeneration of the dye from its oxidized form.

Rights

© 2022 World Scientific Publishing Co Pte Ltd

DOI

10.1142/S1088424616500565

Persistent Identifier

https://archives.pdx.edu/ds/psu/38376

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