Dielectric and gas sensing properties of in situ electrochemically polymerized PPy-MgO-WO3 nanocomposite films. Iraqi Journal of Science [Internet]. 2021 Sep. 30 [cited 2024 May 20];62(9):2915-33. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/3264