Manipulating Film Morphology of All‐Polymer Solar Cells by Incorporating Polymer Compatibilizer,Solar RRL

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Manipulating Film Morphology of All‐Polymer Solar Cells by Incorporating Polymer Compatibilizer
Solar RRL ( IF 6.0 ) Pub Date : 2020-06-08 , DOI: 10.1002/solr.202000148
Wenkai Zhong _{1,

2} , Qin Hu _{3,

4} , Lei Ying ₁ , Yufeng Jiang ₃ , Kang Li ₁ , Zhaomiyi Zeng ₁ , Feng Liu ₅ , Cheng Wang ₂ , Thomas P. Russell _{3,

4} , Fei Huang ₁ , Yong Cao ₁

Affiliation

Morphology control in multiblend all‐polymer solar cells is crucial for improving charge generation processes. Herein, it is demonstrated that the film morphology of the light‐harvesting layer of all‐polymer solar cells can be manipulated by incorporating a copolymer as the compatibilizer. Through in situ grazing‐incidence wide‐angle X‐ray scattering characterization, the insights of the crystallization kinetics of the polymer blends from solution to thin‐film state are provided. Of particular importance is that by kinetic and thermodynamic control of the film‐processing conditions, an optimal morphology with appropriate nanoscale fibrillar structure in a well‐mixed matrix is achieved. These findings indicate that the interplay between the crystalline regions and weakly/noncrystalline regions that are induced by the compatibilizer polymer plays a critical role in determining the morphology in multicomponent blend all‐polymer solar cells.

中文翻译：

通过掺入聚合物增容剂来操纵全聚合物太阳能电池的薄膜形态

多混合物全聚合物太阳能电池的形态控制对于改善电荷产生过程至关重要。本文证明，通过掺入共聚物作为增容剂，可以控制全聚合物太阳能电池集光层的膜形貌。通过原位掠入射广角X射线散射表征，提供了从溶液状态到薄膜状态的聚合物共混物结晶动力学的见解。特别重要的是，通过对薄膜加工条件的动力学和热力学控制，可以在充分混合的基质中获得具有适当纳米级原纤维结构的最佳形态。

更新日期：2020-06-08

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