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NiOx electrochemical sensor fabricated via electrodeposition and spin-coating
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  • Sodam Park,
  • Hoon Kang,
  • Chung Mu Kang,
  • Yekyung Kim,
  • Eun Joong Kim
Sodam Park
Advanced Institutes of Convergence Technology
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Hoon Kang
Advanced Institutes of Convergence Technology
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Chung Mu Kang
Advanced Institutes of Convergence Technology
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Yekyung Kim
Advanced Institutes of Convergence Technology
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Eun Joong Kim
Advanced Institutes of Convergence Technology

Corresponding Author:ccomaya0313@snu.ac.kr

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Abstract

NiOx thin films were prepared on an Au substrate using the electrodeposition (ED), spin-coating (SP), and ED after SP (SP/ED) techniques to realize their application as an electrochemical sensor for the selective detection of trace substances. Results indicated that the electrodeposited films had nanoparticles formed as coarse-grain morphology, and the spin-coated films had a uniform layer with ~60 nm thickness. The thin film prepared by the SP/ED technique showed the highest electrochemical activity, and it was used to record a linear sweep voltammogram to measure the target substance, MSG and glucose, from low concentrations (2 nM) to high concentrations (200 μM). Within the range of concentrations, high R2 values of ≥0.99 were observed for both target substances, confirming that the SP/ED thin films can be used as an electrochemical sensor with high reliability.
26 Jan 2023Submitted to Electronics Letters
26 Jan 2023Submission Checks Completed
26 Jan 2023Assigned to Editor
04 Feb 2023Reviewer(s) Assigned
07 Feb 2023Review(s) Completed, Editorial Evaluation Pending
12 Feb 2023Editorial Decision: Revise Minor
25 Feb 20231st Revision Received
26 Feb 2023Submission Checks Completed
26 Feb 2023Assigned to Editor
26 Feb 2023Review(s) Completed, Editorial Evaluation Pending
01 Mar 2023Editorial Decision: Accept