Three horizontal anchor porphyrins for dye-sensitized solar cells: An optical, electrochemical and photovoltaic investigation

Horizontal anchor zinc porphyrins have promising DSSC sensitizes. The UV–Vis absorption spectra, fluorescence spectra, and the photovoltaic performance of these photosynthesis devices are described. Our results reveal that these DSSC devices have impressive photoelectric conversion efficiency, espec...

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Bibliographic Details
Published inPolyhedron Vol. 117; pp. 155 - 160
Main Authors Wu, Yu, Liu, Jia-Cheng, Guo, Wen-Bo, Li, Ren-Zhi, Jin, Neng-Zhi
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier Ltd 15.10.2016
Elsevier
Subjects
Anchoring group
Chemistry
Chemistry, Inorganic & Nuclear
Crystallography
Dye
Horizontal
Physical Sciences
Science & Technology
Solar cells
Zinc porphyrin
Solar cells
Zinc porphyrin
Dye
Horizontal
Anchoring group
RECOMBINATION
ACID
PERFORMANCE
COMPLEXES
COORDINATION
ADSORPTION
ORGANIC SENSITIZERS
SURFACE
D-PI-A
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Summary:Horizontal anchor zinc porphyrins have promising DSSC sensitizes. The UV–Vis absorption spectra, fluorescence spectra, and the photovoltaic performance of these photosynthesis devices are described. Our results reveal that these DSSC devices have impressive photoelectric conversion efficiency, especially for the assembly based on carboxylic group horizontal anchor porphyrin. [Display omitted] Porphyrins are promising DSSC sensitizers focused on novel anchoring. Herein, three horizontal anchor zinc porphyrins have been designed, synthesized, and well-characterized. Their optical, photovoltaic, theory calculation and electrochemical performances in dye-sensitized solar cells were investigated. Absorption spectra indicated the stronger H-aggregation in ortho carboxylic acid anchor porphyrin (o-ZnPA) than that in meta carboxylic acid anchor porphyrin (m-ZnPA) on the surface of TiO2 nanoparticles. The photoelectric conversion efficiency studies showed a significantly enhanced photovoltaic behavior for meta carboxylic acid anchor porphyrin (m-ZnPA) compared to meta tetrazolium anchor porphyrin (m-ZnPTz). The infrared spectroscopies, theory calculations and the electrochemical impedance spectroscopies revealed that carboxylic acid anchoring binding modes could increase the efficiency of electron injection.
ISSN:0277-5387
1873-3719
DOI:10.1016/j.poly.2016.06.002