| 초록 |
Antireflection on solar cells has attracted great attention and TiO2 is considered as the best electron transport material for the perovskite solar cells. Herein, we have imprinted four different nanopattern perfluoropolyether (PFPE) mold from polyethylene terephthalate (PET) resin and PET film and used it to desing nanopatterned mesoporous TiO2 layer with different aspect ratios to improve the energy conversion efficiency of perovskite solar cell. The energy conversion efficiency (η), current density (Jsc), open-circuit voltage (Voc), and fill factor (ff) were studied by the reflectance of nanopatterned mesoporous TiO2 thin film. The reflectance was minimized with the optimized nanopatterned mesoporous TiO2 and the best efficiency of 15.83% was achieved. The nanopatterned layer on mesoporous TiO2 changes the refractive index that affects the reflectance and hence the Jsc, Voc, and ff which changes the efficiency. |
