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首页> 外文会议>International Conference on Materials Science >Influence of the Active Layer Thickness on Non-Fullerene Polymer Solar Cell Performance
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Influence of the Active Layer Thickness on Non-Fullerene Polymer Solar Cell Performance

机译：活性层厚度对非富勒烯聚合物太阳能电池性能的影响

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Research on polymer solar cells has attracted increasing attention in the past few decades due to the advantages such as low cost of fabrication, ease of processing, mechanical flexibility, etc. In recent years, non-fullerene polymer solar cells are extensively studied, because of the reduced voltage losses, and the tunability of absorption spectra and molecular energy level of non-fullerene acceptors. In this work, polymer solar cells based on conjugated polymer (PBDB-T: poly[(2, 6-(4, 8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1, 2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5', 7'-bis(2-ethylhexyl)benzo[1', 2'-c:4',5'-c']dithiophene-4, 8-dione))]) and non-fullerene electron acceptor (ITIC: 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone)) -5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophene) were prepared by means of spin-coating method, and the influence of the active layer thickness on the device performance was investigated. PBDB-T: ITIC active layers with different thickness were prepared through varying spin coating speed. It was found that the solar cell performance is best when the active layer thickness is 100 nm, corresponding to the spin coating speed of 2000 rpm. Maximum power conversion efficiency of 7.25% with fill factor of 65%, open circuit voltage of 0.85 V and short circuit current density of 13.08 mA/cm~2 was obtained.
机译：研究聚合物太阳能电池已经吸引了在过去的几十年里，由于优势，如制造成本低，易于加工，机械柔韧性等近年来越来越多的关注，非富勒烯的聚合物太阳能电池被广泛研究，因为降低的电压损失，和吸收光谱和非富勒烯受体的分子能级的可调谐性。在这项工作中，基于共轭聚合物的聚合物太阳能电池（PBDB-T：聚[（2，6-（4,8 - 双（5-（2-乙基己基）噻吩-2-基） - 苯并[1,2 b：4,5-b ']二噻吩）） - 交替 - （5,5-（1'，3'-二-2-噻吩基-5' ，7'-二（2-乙基己基）苯并[1' ， 2'-C：4' ，5'-C']二噻吩4,8二酮））]）和非富勒烯的电子受体（ITIC：3,9-双（2-亚甲基 - （3-（1， 1-二氰基亚甲基）茚满酮））-5,5,11,11四（4-己基苯基） - 二噻吩并[2,3-d：2' ，3'-d'] - s-苯并二茚并[1,2 b：5,6-b']二噻吩）通过旋涂方法来制备，并且对器件性能的有源层厚度的影响进行了研究。 PBDB-T：具有不同厚度的ITIC有源层通过改变旋涂速度制备。结果发现，太阳能电池的性能是最好的，当活性层厚度为100nm时，对应于2000rpm的旋涂速度。 /厘米〜得到7.25％的最大功率转换效率为65％的填充因数，0.85 V和13.08毫安的短路电流密度开路电压2。

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