采用聚[2-甲氧基-5-(2-乙基己氧基)对苯乙撑](MEH-PPV)以及ZnO量子点(ZnO-QDs)制备了共混的聚合物太阳电池.利用稳态电流-电压测试,结合荧光光谱,研究了ZnO-QDs的含量对电池性能的影响.实验发现电池的性能与ZnO-QDs的含量有密切的关系.随着ZnO-QDs含量的增加,电池的开路电压因为并联电阻的增加而减小,而短路电流呈现先增加后减小的趋势,这是由于ZnO-QDs含量的增加会对电流产生两个相互竞争的影响,一方面,增加的界面面积会提高短路电流,另一方面,团聚现象逐渐严重以及串联电阻的增加会降低短路电流.光伏性能最优化电池的Zno-QD含量是88wt％,此时薄膜厚度约240 nm,在15.8 mW/cm2光照射下的光电转换效率达到0.24％.
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