فهرست مقالات Majid Ghadrdan مقاله 1 - Efficiency Improvement of InGaP/SiGe tandem solar cell using Si0.18Ge0.82 graded buffer regions 10.30495/jopn.2024.33226.1313 Mojtaba Shahraki Majid Ghadrdan Journal of Optoelectronical Nanostructures , شماره 34 , سال 9 , پاییز 2024