List of Articles Upper Junction Open Access Article Abstract Page Full-Text 1 - Designing an InGaP/InAlGaP Double Junction Solar Cell without an Anti-Reflection Coating by Adding a New Window Layer in the Upper Junction and Optimizing the Back Surface Field Layer Neda Hasanzadeh Bishegahi Abdollah Eskandarian Abbas Ghadimi Ali Esmaeeli 10.30495/jopn.2023.31721.1285