Study on combined optical and electrochemical analysis using indium-tin-oxide-coated optical fiber sensor

Mateusz Śmietana , Paweł Niedziałkowski , Wioleta Białobrzeska , Dariusz Burnat , Petr Sezemsky , Marcin Koba , Vitezslav Stranak , Katarzyna Siuzdak , Tadeusz Ossowski , Robert Bogdanowicz

Abstract

In this work an optical fiber sensor, where a lossy-mode resonance (LMR) effect was obtained due to indium tin oxide (ITO) thin overlay, has been simultaneously applied as a working electrode in a 3-electrode cyclic voltammetry electrochemical setup. Since LMR conditions highly depend on refractive index of a surrounding medium, an LMR-based sensor was applied for optical investigations of electrolyte’s properties at the ITO surface. We have found that the optical response of the sensor highly depends on the applied potential and its changes, as well as the properties of the investigated electrolyte, i.e., its composition and presence of a redox probe. Both optical and electrochemical response of the ITO-LMR sensor to various concentrations of phosphatebuffered saline (PBS), NaCl and Na2SO4, as well as scan rate were investigated and discussed. We have found that the responses in optical and electrical domains differ significantly and may deliver supplementary information about the investigated analyte.
Author Mateusz Śmietana
Mateusz Śmietana,,
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, Paweł Niedziałkowski (FCh / DACh / LSCh)
Paweł Niedziałkowski,,
- Laboratory of Supramolecular Chemistry
, Wioleta Białobrzeska (FCh / DACh / LSCh)
Wioleta Białobrzeska,,
- Laboratory of Supramolecular Chemistry
, Dariusz Burnat
Dariusz Burnat,,
-
, Petr Sezemsky
Petr Sezemsky,,
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, Marcin Koba
Marcin Koba,,
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, Vitezslav Stranak
Vitezslav Stranak,,
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, Katarzyna Siuzdak
Katarzyna Siuzdak,,
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, Tadeusz Ossowski (FCh / DACh / LSCh)
Tadeusz Ossowski,,
- Laboratory of Supramolecular Chemistry
, Robert Bogdanowicz
Robert Bogdanowicz,,
-
Journal seriesElectroanalysis, ISSN 1040-0397, (A 30 pkt)
Issue year2019
Vol31
No2
Pages398-404
Publication size in sheets0.5
Keywords in EnglishCyclic voltammetry, lossy-mode resonance (LMR), optical fiber sensor, refractive index sensing, thin film, indium tin oxide (ITO)
ASJC Classification1603 Electrochemistry; 1602 Analytical Chemistry
DOIDOI:10.1002/elan.201800638
URL https://doi.org/10.1002/elan.201800638
Languageen angielski
Score (nominal)30
ScoreMinisterial score = 30.0, 16-07-2019, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 16-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.643; WoS Impact Factor: 2017 = 2.851 (2) - 2017=2.469 (5)
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