Fabrication of Cr2O3: ZnO Nanostructure Thin Film Prepared by PLD Technique as NH3 Gas Sensor. Iraqi Journal of Science, [S. l.], n. 7, p. 2176–2187, 2021. DOI: 10.24996/ijs.2021.62.7.7. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/3036.. Acesso em: 8 aug. 2025.