Photovoltaic properties of PVK based films with 5,10,15,20-tetra(O-nitrophenyl) porphyrinatozinc and 8-hydroquinoline aluminum

초록

5,10,15,20-Tetra(o-nitrophenyl)porphyrinatozinc (ZnTNPP) and 8-hydroquinoline aluminum (Alq(3)) were used as p-type and n-type semiconductors. We fabricated three types of cells: ITO/PVK (ZnTNPP)/Al, ITO/PVK(ZnTNPP+Alq(3))/Al and ITO/PVK(ZnTNPP)/ Alq(3)/Al. We found that the cell with a p-n junction structure had better conversion efficiency. In the ITO/PVK(ZnTNPP)/Alq(3)/Al cell, photovoltaic parameters were V-OC = 0.94V, J(SC) = 0.62 muA/cm(2), FF = 0.211 and eta = 0.48%.

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