Girija Mangalagatti. “Advancements in Organic Solar Cells: A Comprehensive Review of Materials and Efficiency Improvements”. International Journal of Intelligent Systems and Applications in Engineering 11, no. 11s (December 25, 2023): 508 –. Accessed November 5, 2025. https://www.ijisae.org/index.php/IJISAE/article/view/6943.