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 March 22, 2026. https://ijisae.org/index.php/IJISAE/article/view/6943.