Systematic electrical characterization study of a hybrid organic-inorganic semiconductor heterojunction at different illumination conditions

Recibido el 15 de diciembre de 2010; aceptado el 3 de marzo de 2011Electrical characterization study of hybrid heterojunctions (HHJs) based on CdS and poly(3octylthiophene) (P3OT) is performed in orderto know the process repeatability and materials homogeneity that may influence on power conversion efficiency (PCE) of CdS/P3OT pho-tovoltaic (PV) solar cells. Basic statistical and numerical techniques for solving linear equations were used for systematic analysis of PVperformance of those HJs. Adjustment curves were calculated from experimental data with the adjustment factor equal to almost 99.9 %,which means that the model has a high confidence level. They also were combined with theoretical models to establish a mathematicalmodel that can describe the electrical performance of the mentioned junctions. PV response was analyzed under different illumination con-ditions, 23, 40, 124 and 285 mW/cm