Investigating the properties of a self-standing nickel-mesh decorated with Au nanoparticles for flexible transparent H2O2 sensor applications

Meijia Liu; Ya Weng; Yan-Hua Liu

doi:10.1117/12.2601373

9 October 2021 Investigating the properties of a self-standing nickel-mesh decorated with Au nanoparticles for flexible transparent H₂O₂ sensor applications

Meijia Liu, Ya Weng, Yan-Hua Liu

Author Affiliations +

Proceedings Volume 11901, Advanced Sensor Systems and Applications XI; 119010V (2021) https://doi.org/10.1117/12.2601373
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

In this work, we present a novel Ni@Au H₂O₂ sensor fabricated by employing both the direct laser writing lithography and selective electrodeposition techniques. The proposed sensing configuration exhibits excellent sensitivity and low detection limit of the hydrogen peroxide due to the large specific surface area of the self-supported nickel-metal mesh, as well as the remarkable electrocatalytic performance of Au nanoparticles when hydrogen peroxide is present. More specifically, the detection sensitivity of the employed structure in the concentration range of 0.05~96.55 μM is as high as 91.1 mAmM^-1 cm^-2 . Besides, we can still detect a significant amperometric response of the H₂O₂ for concentrations down to the value of 100 nM. Additionally, the interference signals produced by using various substances such as NaCl, urea, uric acid, lactose, sucrose and so on are usually less than 5% of the H₂O₂ response signal. Our sensing element possesses also outstanding flexibility and transparency properties, which renders it attractive for wearable applications

Citation Download Citation

Meijia Liu, Ya Weng, and Yan-Hua Liu "Investigating the properties of a self-standing nickel-mesh decorated with Au nanoparticles for flexible transparent H₂O₂ sensor applications", Proc. SPIE 11901, Advanced Sensor Systems and Applications XI, 119010V (9 October 2021); https://doi.org/10.1117/12.2601373

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