中文摘要：

研究了不同溶剂对2-甲氧基-5-（2-乙基己氧基）-1，4-对苯撑乙烯（MEH-PPV）：N，N’-二（1-乙基丙基），3，4，9，10-菲四羧酸二亚酰胺（EP-PTC）复合膜的形貌及其对以MEH-PPV：EP-PTC复合膜为活性层的太阳电池性能的影响。结果表明：非芳香性溶剂不利于MEH-PPV与EP-PTC的相容，MEH-PPV与EP-PTC两相间形成微米尺寸（0．5-5μm）的相分离，因而以MEH-PPV：EP-PTC复合膜为活性层的太阳电池中的电荷分离效率较低，进而电池的能量转换效率较低．而芳香性溶剂有利于MEH-PPV与EP-PTC的相容，MEH-PPV与EP-PTC两相间能形成纳米尺度的相分离，因此MEH-PPV与EP-PTC两相间的界面面积明显增加，界面处的电荷分离概率明显提高,与非芳香性溶剂相比，基于芳香性溶剂的复合膜太阳电池的能量转换效率提高了20倍。

英文摘要：

The effects of different solvents on the morphology of poly（2-methoxy-5-（2-ethyl-hexyloxy）-p-phenylene vinylene） （MEH- PPV） ： N, N＇-bis （ 1-ethylpropyl）-3,4,9,10- perylene bis （ tetracarboxyl diimide） （ EP- PTC） blend film and the performance of solar cells based on MEH-PPV： EP-PTC blend film were studied. The results show that the phase separation in the blend film using non-aromatic solvents is of micron （0.5-5 μm） size, which leads to low charge separation efficiency and consequently the low power conversion efficiency of the assembled solar cell; whereas the phase separation in the blend film using aromatic solvents is of nano-size, which increases the interface area of the two phases obviously and consequently increases the ratio of charge separation significantly. The power conversion efficiency of solar cells based on MEH-PPV： EP-PTC blend film using aromatic solvents is improved 30 times of magnitude compared with that of solar cell based on the blend film using non-aromatic solvents.