不同受体对PTB7聚合物太阳能电池的性能影响的研究

发布时间：2018-06-22 22:58

  本文选题：聚合物太阳能电池 + 聚苯并二塞吩　； 参考：《光谱学与光谱分析》2016年08期

【摘要】：使用两种或者更多种类的富勒烯衍生物作为受体可以使poly(3-己基噻吩)(P3TH)系的混合异质结太阳能电池效率明显提升。这样的提升源于当受体使用富勒烯多重加合物的最低未占轨道(LUMO)提升而使其开路电压升高。虽然其他聚合物也同样能获得高的开路电压,但是大多数的聚合物却不像P3TH一样获得性能提升,在与像苯基-C61-丁酸甲酯(bis-PCBM)或者the indene-C60 bis-adduct(ICBA)混合后表现出下降的光电流。在此,我们研究这些性能改变的原因。使用[6,6]-苯基C_(70)-丁酸甲酯(PC_(70)BM),ICBA和bis-PC_(70)BM作为受体并且PTB7作为给体,其结构为:ITO/PEDOT:PSS/活性层/LiF/Al,聚合物太阳能电池的表现的性能分别为7.29%,4.92%和3.33%。性能的改变可能主要归因于不同受体影响器件激子产生和电荷收集。
[Abstract]:Using two or more kinds of fullerene derivatives as receptors can significantly improve the efficiency of hybrid heterojunction solar cells of poly (3-hexylthiophene) (P3TH) system. This ascension results from an increase in open-circuit voltage when the receptor uses the lowest unoccupied orbit (LUMO) of the fullerene multiplex adducts. Although other polymers can also obtain high open-circuit voltage, most polymers do not improve their performance like P3TH, and exhibit decreased photocurrent when mixed with methyl phenyl -C61-butyrate (bis-PCBM) or the indene-C60 bis-adduct (ICBA). Here, we study the causes of these performance changes. [6] -phenyl C _ (70) -butyrate methyl ester (PC70BM) and bis-PC70BM were used as the receptors and PTB7 as the donor. The structure of the polymer solar cells was as follows: t / ITO / PEDOT: PSS/ active layer / LiF / Al, the performance of the polymer solar cells was 7.294.92% and 3.33%, respectively. The change in performance may be attributed to the effects of different receptors on exciton generation and charge collection.
【作者单位】： 北京交通大学发光与光信息技术教育部重点实验室;北京交通大学光电子技术研究所;
【基金】：教育部博士点基金项目(20130009130001,20120009130005);教育部博士点基金项目资助 国家自然科学基金项目(11474018,51272022,61575019) 中央高校基本科研业务费专项资金项目(2012JBZ001) 国家高技术研究发展计划(863计划)项目(2013AA032205)
【分类号】：O631.2;TM914.4
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