“Study of Band Gap Reduction and Enhanced Light Absorption in DSSC’s Using N-TiO2 and Azo Dye Composites”. International Journal of Scientific Research in Science and Technology 11, no. 4 (July 13, 2024): 449–455. Accessed August 10, 2025. https://mail.ijsrst.com/index.php/home/article/view/IJSRST24115102.