Sagir, Ziya’ulhaq, and Abdu Yunusa. “Comparative Analysis of the Photovoltaic Properties of Copper (I) Oxide Copper (I) Sulphide [N-Cu2O P-Cu2S] Heterojunction Solar Cells Fabricated by Immersion and Heating Techniques”. UMYU Scientifica 4, no. 1 (March 30, 2025): 354–361. Accessed April 13, 2026. https://publications.umyu.edu.ng/scientifica/index.php/usci/article/view/157.