hameed, alaa and Sabah A. Salman 2024. Preparation and Study of Structural, Optical and Electrical Properties of the Composite Films [PVA-PEO-MnCl2.4H2O]. Academic Science Journal. 2, 2 (Apr. 2024), 78–90. DOI:https://doi.org/10.24237/ASJ.02.02.830B.