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中文摘要：
以ZnO纳米棒和聚[2-甲氧基-5-（2-乙基-己氧基）-1,4-苯撑乙烯撑]（MEH-PPV）的复合体系作为光敏层制备了太阳电池.为了增大电池的光吸收,在ZnO纳米棒与MEH-PPV之间插入了有机n型小分子多环类苝四甲酸二酐（PTCDA）,制备了不同厚度的PTCDA、结构为ITO/ZnO纳米棒/PTCDA/MEH-PPV/Au的太阳电池.实验发现,插入PTCDA后,电池在可见光区的吸收增强,光生激子数量增大,光电流密度增大.当蒸镀的PTCDA厚度为40nm时,薄膜的粗糙度适中,表面形貌较为平滑,器件性能达到最优.进一步分析了电池性能提高的原因.
英文摘要：
ZnO nanoroods/poly [2-methoxy-5-（2-ethyl-hexyloxy）-1,4-phenylene vinylene]（MEH-PPV） hybrid solar cells are fabricated and their properties are discussed.In order to improve the absorption of sunlight,a layer of 3,4,9,10-perylenetetracarboxylic dianhydride（PTCDA） is inserted between ZnO nanorods and MEH-PPV,and cells with the structure ITO/ZnO nanorods/PTCDA/MEH-PPV/Au are prepared with different thickness values of PTCDA.After introducing PTCDA,the devices show a strong and broad absorption in visible region,which increases the number of photo-induced excitons and thus results in an enlarged photocurrent.When the thickness of PTCDA is 40 nm,we can observe the smooth morphology of thin layer surface,and achieve the best performance of the device.
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