OPTIMIZING LEAD-FREE CsGeI3 PEROVSKITE SOLAR CELLS: SCAPS-1D SIMULATION ACHIEVING 27.34% EFFICIENCY THROUGH LAYER THICKNESS AND BAND ALIGNMENT TUNING. Kashf Journal of Multidisciplinary Research, [S. l.], v. 2, n. 09, p. 241–251, 2025. DOI: 10.71146/kjmr632. Disponível em: https://kjmr.com.pk/kjmr/article/view/632. Acesso em: 15 dec. 2025.