Effect of Zn doping in CuO optical and gas sensing properties

In this research, monoclinic copper oxide (cuo) films dopped with zinc were deposited by DC magnetron sputtering method. These films were studied as gas sensors for NO2 gas. The best sensitivity to gas was found to sample (D) at a temperature of (200C), which led to semi-The P-type conductor with an n-type semiconductor leads to an increase in the sensitivity of the gas sensor to the target gas by decreasing the resistance of the sensor and thus increasing its sensitivity. In the optical tests, the optical energy gap of the prepared films was calculated and found to be equal to (Eg=3.03, 2.99, 2.97, 2.93, 2.89, 2.85eV) It was also found that the optical energy gap directly by calculating the absorption coefficient, as well as the latency coefficient and refractive index of the prepared films