Oeba, D. A., and C. O. . Mosiori. “Influence of Bulk Defect Density in CIGS on the Efficiency of Copper Indium Gallium Selenide Photocell”. European Journal of Applied Physics, vol. 6, no. 6, Nov. 2024, pp. 1-13, doi:10.24018/ejphysics.2024.6.6.292.