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中文摘要：
采用Cs2CO3,石墨烯（graphene）：Cs2CO3混合材料和ZnO纳米颗粒作为阴极修饰材料,研究了不同阴极界面修饰层对基于SubPc/C60的倒置结构的有机太阳能电池性能的影响.结果表明：引入适当厚度的阴极修饰层,可以提高器件的性能和稳定性;尤其是基于Cs2CO3以及graphene：Cs2CO3混合阴极修饰层的光伏器件,能量转换效率（PCE）提高了2倍;同时,采用ZnO纳米颗粒作为阴极修饰层的器件,开路电压（VOC）达到0.89V,并且器件的PCE提高了4倍多.此外,不同电极修饰材料和倒置结构的引入可以有效防止器件串连电阻的升高,从而提高器件的稳定性.
英文摘要：
Organic solar cell （OSC） with an inverted structure based on subphthalocyanine （SubPc）/C60 is fabricated by using Cs2CO3, graphene：Cs2CO3 mixed system and ZnO nanoparticles as cathode modifying materials, and its influences on the performance and stability of OSC are investigated. The results show that the OSC with an appropriate thickness of cathode modifying layer exhibits higher performance and it is more stable than those unmodified ones. The power conversion efficiency （PCE） of the Cs2CO3 and graphene：Cs2CO3 mixed material modified device is enhanced by a factor of two. Meanwhile, the ZnO nanoparticle modified device shows a highest open-circuit voltage （Voc） of 0.89 V, and the PCE increases more than 4 times. Besides, the adoptions of different cathode modifying materials and the inverted structures can effectively prevent the series resistance of the device from increasing, thereby improving the stability of the device.
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