CC BY
1*
ALT'23
The 30th International Conference on Advanced Laser Technologies
LM-P-8
Fast and efficient technique for fabricating highly reactive electrode material using laser deposition from DES
A.S. Levshakova1, E.M. Khairullina1, A. Yu. Shishov1, I.I. Tumkin1, A.A. Manshina1
1-Institute of Chemistry, Saint Petersburg University, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
Main author email address: sashkeens@gmail.com
The development of advanced techniques for the production of metallic conductive structures on dielectric substrates is crucial for a wide range of applications, including flexible electronics, sensors, and modern devices. This necessitates the fabrication of prototypes and complex conductive structures, sometimes with three-dimensional morphology. In this study, a novel approach employing laser deposition of metals from deep eutectic solvents (DES) is investigated, replacing traditional aqueous or alcoholic solutions. DESs are mixtures of substances with a lower melting point than the precursors, enabling efficient metal deposition [1].
By incorporating DES in the laser-assisted metal deposition method, significant improvements have been achieved. The deposition rate has been notably enhanced, simplifying the technique by eliminating the need for cuvettes. This advancement has demonstrated the capability to rapidly and effectively metallize a broad range of metals. Figure 1a illustrates the schematic representation of the single-step method, while Figures 1b and 1c depict photographs and an image, respectively, of the fabricated nickel electrodes. To showcase the applicability of the resulting metal micropatterns, electrochemical studies were conducted. These structures were utilized as working electrodes for non-enzymatic glucose sensing and the detection of other biologically important analytes, as demonstrated in Figure 1d.
0,0 0,2 0,4 0,6 Potential (V vs. Ag/AgCl)
Figure 1. a) Process scheme, b) Electrode photographs c) SEM images of electrodes d) samples CV regarding the enzyme-free determination of dopamine and paracetamol.
[1] E. L. Smith, A. P. Abbott and K. S. Ryder, Chem. Rev., 2014, 114, 11060-11082
[2] Khairullina E. M. et al, New J. Chem, 45, 46, 21896, 2021;
[3] Levshakova A. S. et al, Mater. Lett., 308, 131085, 2022.
This work was supported by RSF № 23-49-10044.
