Abstract
Herein, we fabricated the bulk heterojunction organic photovoltaics (OPV) using the different hybrid composites doped novel combination of PBDB-T:PCBM/hybrid-nanostructures with the architecture of ITO/HTL/active-layer/LiF/Al. Structural and morphological characteristics were evidently established the formation of W2C@rGO and Mo2C@rGO composites by the simple chemical reduction process. The different concentrations of prepared nanocomposites were doped with polymer PBDB-T:PCBM matrix to modify the active layer properties in the OPV devices. The Mo2C@rGO and W2C@rGO (10 vol%) composites using tuned active realized the improved power conversion efficiency (PCE) of 6.98 and 6.84%, respectively which is quite high compared to the pure PBDB-T: PCBM active layer (PCE = 5.61%) and bare rGO (6.66%), Mo2C (6.43%) and W2C (6.20%) outcomes. The procured results explored that the W2C@rGO and Mo2C@rGO hybrid incorporated active layers facilitate the swift charge transport and extraction possibility to achieve the high efficiency photovoltaic devices.
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