Kiani, R., Fouladiyan, M., & Fatemi, S. M. J. R. (2026). An effect of band gap engineering, absorber layer type, and Ga/(Ga+In) ratio variation on the performance of CIGS thin-film solar cells. International Journal of Natural and Engineering Sciences, 20(2), 52–62. Retrieved from https://www.ijnes.org/index.php/ijnes/article/view/934