Three alcohol/water-soluble porphyrins, Zn-TPyPMeI： zinc（II） meso-tetra（N-methyl-4-pyridyl） porphyrin tetra-iodide, Zn- TPyPAdBr： zinc（II） meso-tetra[1-（1-adamantylmethyl ketone）-4-pyridyl] porphyrin tetra-b...Three alcohol/water-soluble porphyrins, Zn-TPyPMeI： zinc（II） meso-tetra（N-methyl-4-pyridyl） porphyrin tetra-iodide, Zn- TPyPAdBr： zinc（II） meso-tetra[1-（1-adamantylmethyl ketone）-4-pyridyl] porphyrin tetra-bromide and MnC1-TPyPAdBr： man- ganese（III） meso-tetra[1-（1-adamantylmethyl ketone）-4-pyridyl] porphyrin tetra-bromide were employed as cathode interlayers to fabricate polymer solar cells （PSCs）. The PCvaBM （[6,6]-phenyl C71 butyric acid methyl ester） and PCDTBT （poly[N-9＂- hepta-decanyl-2,7-carbazole-alt-5,5-（4＇,7＇-di-2-thienyl-2＇,3＇-benzothiadiazole）]）-blend films were used as active layers in polymer solar cells （PSCs）. The PSCs with alcohol/water-soluble porphyrins interlayer showed obviously higher power con- version efficiency （PCE） than those without interlayers. The highest PCE, 6.86%, was achieved for the device with MnCl- TPyPAdBr as an interlayer. Ultraviolet photoemission spectroscopic （UPS）, carrier mobility, atomic force microscopy （AFM） and contact angle （0） characterizations demonstrated that the porphyrin molecules can result in the formation of interfacial dipole layer between active layer and cathode. The interfacial dipole layer can obviously improve the open-circuit voltage （Voc） and charge extraction, and sequentially lead to the increase of PCE.展开更多
基金supported by the National Basic Research Program of China(2014CB643500)the National Natural Science Foundation of China(51273077,51173065)
文摘Three alcohol/water-soluble porphyrins, Zn-TPyPMeI： zinc（II） meso-tetra（N-methyl-4-pyridyl） porphyrin tetra-iodide, Zn- TPyPAdBr： zinc（II） meso-tetra[1-（1-adamantylmethyl ketone）-4-pyridyl] porphyrin tetra-bromide and MnC1-TPyPAdBr： man- ganese（III） meso-tetra[1-（1-adamantylmethyl ketone）-4-pyridyl] porphyrin tetra-bromide were employed as cathode interlayers to fabricate polymer solar cells （PSCs）. The PCvaBM （[6,6]-phenyl C71 butyric acid methyl ester） and PCDTBT （poly[N-9＂- hepta-decanyl-2,7-carbazole-alt-5,5-（4＇,7＇-di-2-thienyl-2＇,3＇-benzothiadiazole）]）-blend films were used as active layers in polymer solar cells （PSCs）. The PSCs with alcohol/water-soluble porphyrins interlayer showed obviously higher power con- version efficiency （PCE） than those without interlayers. The highest PCE, 6.86%, was achieved for the device with MnCl- TPyPAdBr as an interlayer. Ultraviolet photoemission spectroscopic （UPS）, carrier mobility, atomic force microscopy （AFM） and contact angle （0） characterizations demonstrated that the porphyrin molecules can result in the formation of interfacial dipole layer between active layer and cathode. The interfacial dipole layer can obviously improve the open-circuit voltage （Voc） and charge extraction, and sequentially lead to the increase of PCE.
