[19a-P04-1~13] 3.6 Laser processing

[19a-P04-6] Integration of three electrodes for flexible electrochemical sensors by femtosecond laser direct writing

〇(B)Shoto Mashiko¹, Hirokazu Komatsu¹, Shoma Sato¹, Ilya Tumkin², Andreas Ostendorf², Mizue Mizoshiri¹ (1.Nagaoka Univ. of Tech., 2.Ruhr Univ. Bochum)

Keywords:

CuO nanoparticle ink,Femtosecond laser direct reductive sintering,glucose

Three electrodes: Cupper-based working electrode, carbon-based counter electrode, and Ag/AgCl reference electrode were integrated on polyethylene naphthalate (PEN) for non-enzymatic glucose sensor by using femtosecond laser direct writing. The Cu-based electrode was fabricated by femtosecond laser reductive sintering of CuO nanoparticles. The counter and wires were carbonized of PEN substrate film using femtosecond laser-pulse induced carbonization. The reference was formed by printing of Ag/AgCl paste. The cyclic voltammograms of Cu-based and carbon-based electrodes exhibited that only Cu-based electrode was oxidized by D-glucose. These results suggest that the integrated sensor written directly on the substrate is expected to be used for flexible sensors.