用户名: 密码: 验证码:
有机太阳能电池的多尺度模拟
详细信息    查看官网全文
摘要
体异质结的有机太阳能电池的活性层形貌对于有机太阳能电池器件的效率和性能有着至关重要的影响。但是,实验上很难去观测与表征整个活性层的三维形貌。我们通过多尺度的模拟方法首次定性地表征了体异质结的有机太阳能电池的活性层的形貌及演变过程。并结合计算机中的图论的方法,通过形貌定量地表征了整个有机太阳能电池的效率与性能。我们的模拟结果可以很好的与实验结果比较,并且能够应用新颖的有机太阳能电池的体系。
The morphology of active layers in the bulk heterojunction(BHJ)solar cells has an important impact on the performance of the organic photovoltaic(OPV)devices.However,only limited simulation/experimental methods can display the properties of the morphology of the active layers completely.In this paper,we developed a multiscale molecular simulation framework by integrating atomistic molecules and mesoscopic morphologies information to manifest and characterize the performance of BHJ OPV devices.Dissipative particle dynamics(DPD)with bead-and-spring model,as an advanced hydrodynamics,are used to investigate the phase separation process and 3D-morphology of the active layers in the polymer/polymer blends.To evaluate the properties of morphologies,we introduce five physical descriptors and link them with the efficiency of OPV devices in the experiment.Our results agree well with experimental results and this multiscale simulation methods can be extended to reflect the properties of the morphologies of different OPVs.
引文
[1]Chunmiao Du,Yujin Ji,Junwei Xue,Tingjun Hou,Jianxin Tang,Shuit-Tong Lee,Youyong Li*,Scientific Reports,2015,5,16854;doi:10.1038/srep16854.
    [2]Xiaojuan Xu,Yujin Ji,Chunmiao Du,Tingjun You,Youyong Li*,RSC Advances,2015,5,70939-70948.
    [3]Yujin Ji,Chunmiao Du,Xiaojuan Xu,Tingjun Hou,Youyong Li*,Molecular Simulation,2015,DOI:10.1080/08927022.2015.1114176

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700