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Catalysts, volume 11, issue 6, pages 729

Inversion of the Photogalvanic Effect of Conductive Polymers by Porphyrin Dopants

Publication typeJournal Article
Publication date2021-06-12
Journal: Catalysts
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor3.9
ISSN20734344
Catalysis
Physical and Theoretical Chemistry
Abstract

Conductive polymers are widely used as active and auxiliary materials for organic photovoltaic cells due to their easily tunable properties, high electronic conductivity, and light absorption. Several conductive polymers show the cathodic photogalvanic effect in pristine state. Recently, photoelectrochemical oxygen reduction has been demonstrated for nickel complexes of Salen-type ligands. Herein, we report an unexpected inversion of the photogalvanic effect caused by doping of the NiSalen polymers with anionic porphyrins. The observed effect was studied by means of UV-Vis spectroscopy, cyclic voltammetry and chopped light chronoamperometry. While pristine NiSalens exhibit cathodic photopolarization, doping with porphyrins inverts the polarization. As a result, photoelectrochemical oxidation of the ascorbate proceeds smoothly on the NiSalen electrode doped with zinc porphyrins. The highest photocurrents were observed on NiSalen polymer with o-phenylene imine bridge, doped with anionic zinc porphyrin. Assuming this, porphyrin serves both as a catalytic center for the oxidation of ascorbate and an internal electron donor, facilitating the photoinduced charge transport and anodic depolarization.

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PETROV A. A. et al. Inversion of the Photogalvanic Effect of Conductive Polymers by Porphyrin Dopants // Catalysts. 2021. Vol. 11. No. 6. p. 729.
GOST all authors (up to 50) Copy
PETROV A. A., Lukyanov D. A., Kopytko O. A., Novoselova J. V., Alekseeva E. V., Levin O. V. Inversion of the Photogalvanic Effect of Conductive Polymers by Porphyrin Dopants // Catalysts. 2021. Vol. 11. No. 6. p. 729.
RIS |
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RIS Copy
TY - JOUR
DO - 10.3390/catal11060729
UR - https://doi.org/10.3390%2Fcatal11060729
TI - Inversion of the Photogalvanic Effect of Conductive Polymers by Porphyrin Dopants
T2 - Catalysts
AU - Kopytko, Oleg A
AU - Alekseeva, Elena V
AU - PETROV, ALEXEY A.
AU - Novoselova, Julia V
AU - Lukyanov, Daniil A
AU - Levin, Oleg V.
PY - 2021
DA - 2021/06/12 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 729
IS - 6
VL - 11
SN - 2073-4344
ER -
BibTex |
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BibTex Copy
@article{2021_PETROV
author = {Oleg A Kopytko and Elena V Alekseeva and ALEXEY A. PETROV and Julia V Novoselova and Daniil A Lukyanov and Oleg V. Levin},
title = {Inversion of the Photogalvanic Effect of Conductive Polymers by Porphyrin Dopants},
journal = {Catalysts},
year = {2021},
volume = {11},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {jun},
url = {https://doi.org/10.3390%2Fcatal11060729},
number = {6},
pages = {729},
doi = {10.3390/catal11060729}
}
MLA
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MLA Copy
PETROV, ALEXEY A., et al. “Inversion of the Photogalvanic Effect of Conductive Polymers by Porphyrin Dopants.” Catalysts, vol. 11, no. 6, Jun. 2021, p. 729. https://doi.org/10.3390%2Fcatal11060729.
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