Tailoring properties of indium tin oxide thin films for their work in both electrochemical and optical label-free sensing systems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43902987" target="_blank" >RIV/60076658:12310/21:43902987 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/21:00552199

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0925400521007425?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925400521007425?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2021.130173" target="_blank" >10.1016/j.snb.2021.130173</a>

Result language

angličtina

Original language name

Tailoring properties of indium tin oxide thin films for their work in both electrochemical and optical label-free sensing systems

Original language description

This work is devoted to the identification properties of indium tin oxide (ITO) thin films responsible for their possible application in combined optical and electrochemical label-free sensing systems offering enhanced functionalities. Since any post-processing would make it difficult to identify direct relation between deposition parameters and properties of the ITO films, especially when deposition on temperature-sensitive substrates is considered, the films were deposited using reactive high power impulse magnetron sputtering (HiPIMS) at low temperature and with no post-deposition annealing. We focused mainly on the impact of reactive gases, such as oxygen or nitrogen introduced to the process chamber, on control over plasma parameters and subsequently properties of the films. The properties of the films were investigated using X-ray diffractometry, spectroscopic ellipsometry, four-point probe, and cyclic voltammetry. For presenting optical sensing capabilities, the tailored ITO films in addition to silicon and glass wafers were also deposited on the core of optical fibers to induce the lossy-mode resonance (LMR) phenomenon. The existence of specific deposition conditions resulting in ITO film properties offering both high-quality electrochemical and LMR responses has been experimentally proven. It has been found that the crystalline structure of ITO plays a key role in the determination of both the sensing capabilities. Finally, label-free sensing of antibody-antibody interactions in both optical and electrochemical domains for the sensor with tailored ITO film has been shown.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10406 - Analytical chemistry

Project

<a href="/en/project/GA19-20168S" target="_blank" >GA19-20168S: Nanostructures for LSPR biosensors based on optical fibre</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Sensors and Actuators B: Chemical

ISSN

0925-4005

e-ISSN

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Volume of the periodical

343

Issue of the periodical within the volume

SEP 15 2021

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

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UT code for WoS article

000663571400001

EID of the result in the Scopus database

2-s2.0-85106666042