Simulated Design and Improvement of Efficiency of Organic Solar Cells

Abstract

-We have performed a program simulation for design and development of highly efficient organic solar cells. We have simulated a model cell structure of ITO (indium-tin-oxide) anode/CuPc (copper phthalocyanine)/C 60 (fullerene)/BCP (2,9-dimethyl-4.7-diphenyl-1,10-phenanthroline)/Al (aluminum) cathode. As a result, obtained short-circuit current density (J sc), open-circuit voltage (V oc), values of fill factor (FF), and power conversion efficiency (η) are 2.25 mA/cm 2 , 0.442 V, and 0.35, 0.35 %,. Also, Organic solar cells were manufactured with a condition obtained from simulation. Experimentally obtained values of J sc , V oc , and η are 1.05 mA/cm 2 , 0.25 V, and 0.21 %, respectively. When compared experimental results with optimum simulation structure, the values of J sc , V oc , and η are reduced by 53, 40, and 65 %, respectively.