Study of the optical properties of (ZnO) undoped and manganese-doped (ZnO:Mn) films using the chemical vapor deposition at normal pressure (APCVD) technique. cbej [Internet]. 2022 Dec. 20 [cited 2024 Jul. 19];23(97):1-10. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/8148