Synthesizing the CuO-Cu2O Film by Using the One-Step Electrochemical Method for the Biosensor with IoT Function

In this study, we provided an easy method for forming the copper oxide (CuO) with the cuprous oxide (Cu2O) films on the copper tape. We put the copper tape on the electrochemical solution during oxidation process at 95 °C. We synthesized the CuO-Cu2O film in this condition. We also observed the CuO-Cu2O film of crystal structure which was characterized by X-ray diffraction (XRD) and SEM analysis. We fabricated the CuO-Cu2O film by an oxidizing technique and used cyclic voltammetry for performing the electrochemical characteristic by designing the device with internet of thing (IoT) function. We revealed the CuO-Cu2O film for determining the glucose concentration with the range of 0–5 mM approximately. The performance of developing the non-enzymatic CuO-Cu2O sensor towards sensing a larger range of the glucose concentration.