Effect of WO3 Nanoparticles on performances of organic solar cells

In this study, we examine the effect of various ratios of WO3 nanoparticles in the active layer of organic solar cells (OSC). Th e organic polymers used in active layer are poly (3-hexylthiophene) (P3HT) and acceptor fullerene (C60). Th e active layer blend was prepared in 1,2,4-trichlorobenzene using various amount of metal oxide, while keeping the constant ratio of P3HT and C60. Th e use of Nanoparticle (WO3) into the P3HT/C60 layer to improve the power conversion efficiency (PCE) of the device is investigated. Th e power conversion efficiency (PCE) of the devices is found to increase in presence of Wo3 in the blend of active layer of the devices. Th e absorption increased with addition of the metal oxid in the active layer of the devices. Th e performances of the devices depend upon the optimum ratios of metal oxides with P3HT and (C60).