Abstract
The present study investigated the influence of employing various mass ratios of the P3HT:PCBM blend as an active layer using the doctor blade technique with a speed of 40 mm/s. ZnO nanostructure and ZnO nanorods (NRs) were utilized in an inverted bulk heterojunction organic solar cell as an electron transport layer. The temperature in annealing was 140 °C. The active layer played a significant role in increment hole mobility and balanced charge transport. The samples were examined by the X-ray diffraction, scanning electron microscopy, UV–visible transmission spectra. The use of P3HT:PCBM with a ratio of 1:0.9 on the top of the ZnO nanoparticles gave Jsc of 9.46 mm/s, Voc of 0.550 V, and a fill factor of 64.09% and resulted in a power conversion efficiency of 3.33%.
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