Optical and Structural Properties of Titanium Dioxide Papered by DC Magneto-Sputtering as a NO2 Gas Sensor. Iraqi Journal of Science [Internet]. 2020 Oct. 28 [cited 2024 May 3];61(10):2562-9. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1798