Umar, M.; Adeoye, A. E.; Abdulwasiu, S. O. The Impact of Fe-Doping on the Structural, Optical and Electric Properties of MnO2 Thin Films Prepared by Spray Pyrolysis Technique for Solar Application. NJP 2025, 34 (4), 30-38. https://doi.org/10.62292/10.62292/njp.v34i4.2025.408.