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Enhancing electrochemical properties of an ITO-coated lossy-mode resonance optical fiber sensor by electrodeposition of PEDOT:PSS
Abstract
A sensor working in multiple domains may offer enhanced information about the properties of an investigated analyte, including those containing biological species. It has already been shown that a dual-domain sensing capability, i.e., in optical and electrochemical domains, can be offered by lossy-mode resonance (LMR) sensors based on indium-tin-oxide (ITO) thin film. The spectral response of the LMR sensors depends on the refractive index (RI) at the ITO surface. In this work, we discuss a capability for enhancing the electrochemical properties of these sensors by electrodeposition of poly(3,4-ethylenedioxythiophene)–poly(4-styrenesulfonate) (PEDOT:PSS) on the ITO surface. This conjugated polymer shows high electrical conductivity, high optical transmittance, as well as good chemical stability, and thus can be used as a transparent electrode. We have found that the PEDOT:PSS deposition improves the reversibility of the electrochemical reduction/oxidation reactions by 2.5 times with no negative impact on LMR-based measurements of the RI of the analyte.
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Authors (8)
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Dariusz Burnat
- Politechnika Warszawska Instytut Mikroelektroniki i Optoelektroniki
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Petr Sezemsky
- University of South Bohemia Institute of Physics and Biophysics
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Viteszlav Stranak
- University of South Bohemia Institute of Physics and Biophysics
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Marcin Koba
- Politechnika Warszawska Instytut Mikroelektroniki i Optoelektroniki
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Katarzyna Siuzdak
- PAN Instytut Maszyn Przepływowych
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Mateusz Śmietana
- Politechnika Warszawska Instytut Mikroelektroniki i Optoelektroniki
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1364/OME.9.003069
- License
- Copyright (2020 Optical Society of America)
Keywords
Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Optical Materials Express
no. 7,
pages 3069 - 3078,
ISSN: 2159-3930 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Sobaszek M., Burnat D., Sezemsky P., Stranak V., Bogdanowicz R., Koba M., Siuzdak K., Śmietana M.: Enhancing electrochemical properties of an ITO-coated lossy-mode resonance optical fiber sensor by electrodeposition of PEDOT:PSS// Optical Materials Express. -Vol. 7, (2019), s.3069-3078
- DOI:
- Digital Object Identifier (open in new tab) 10.1364/ome.9.003069
- Verified by:
- Gdańsk University of Technology
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