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Tuning of the Electrochemical Properties of Transparent Fluorine-doped Tin Oxide Electrodes by Microwave Pulsed-plasma Polymerized Allylamine
Abstract
We report here the dry, one-step, and low-temperature modification of FTO surfaces using pulsed plasma polymerization of allylamine (PPAAm). PPAAm/FTO surfaces were characterized by X-ray photoelectron spectroscopy, spectroscopic ellipsometry, and contact angles to understand the morphological, structural, and optical properties. FTO were coated with a very thin layer of adherent cross-linked, pinhole-, and additive-free allylamine plasma polymer resistant to hydrolysis and delamination, and characterized by a high density of positively charged amino groups. Electrochemical studies revealed that PPAAm/FTO electrodes show wide range pH stability and reaction rates tuned by the duration of plasma treatment. We show how the modification of plasma treatment duration between 72 s and 288 s affects the chemical structure and thickness of the obtained modification, having a strong influence on the charge transfer kinetics. In particular, XPS revealed the occurrence of the reduction processes under long-term plasma exposure proving the need for monitoring of this key factor. This covalent immobilization of amine compounds on FTO surface using rapid process in microwave pulsed-plasma makes it a promising electrode for future applications in electrochemical biosensors and optoelectronic devices
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Authors (7)
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Anna Cirocka
- Uniwersytet Gdański, Wydział Chemii Katedra Chemii Analitycznej
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Dorota Zarzeczańska dr
- Uniwersytet Gdański, Wydział Chemii Katedra Chemii Analitycznej
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Anna Wcisło dr
- Uniwersytet Gdański, Wydział Chemii Katedra Chemii Analitycznej
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B. Finke
- Leibniz Institute of Plasma Science and Technology Plasma Surface Technology
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Tadeusz Ossowski prof. dr hab. inż.
- Uniwersytet Gdański, Wydział Chemii Katedra Chemii Analitycznej
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Keywords
Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
ELECTROCHIMICA ACTA
no. 313,
pages 432 - 440,
ISSN: 0013-4686 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Cirocka A., Zarzeczańska D., Wcisło A., Ryl J., Bogdanowicz R., Finke B., Ossowski T.: Tuning of the Electrochemical Properties of Transparent Fluorine-doped Tin Oxide Electrodes by Microwave Pulsed-plasma Polymerized Allylamine// ELECTROCHIMICA ACTA. -Vol. 313, (2019), s.432-440
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.electacta.2019.05.046
- Verified by:
- Gdańsk University of Technology
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