Finely Tuned Composition in Conjugated Polyelectrolytes for Interfacial Engineering of Efficient Polymer Solar Cells,Small Methods

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Finely Tuned Composition in Conjugated Polyelectrolytes for Interfacial Engineering of Efficient Polymer Solar Cells
Small Methods ( IF 10.7 ) Pub Date : 2018-03-12 , DOI: 10.1002/smtd.201700407
Xiang Liu ₁ , Zhiming Chen ₁ , Rongguo Xu ₁ , Ruiwen Zhang ₁ , Zhicheng Hu _{1,

2} , Fei Huang _{1,

2} , Yong Cao ₁

Affiliation

Conjugated polyelectrolytes (CPEs) work as highly efficient interface materials in organic optoelectronic devices. A series of CPEs is presented with tunable composition designed to study the evolution of backbones in CPEs and their effects on the properties and photovoltaic performance of the CPEs. The introduction of electron‐withdrawing moieties into the main chains can improve the photostability, doping strength, and electron mobility of these CPEs. These CPEs can work well as cathode interfacial layers and enhance device performance by improving interface contact and inducing interface doping, thus enabling efficient polymer solar cells with power conversion efficiencies greater than 10%. Moreover, CPEs with a greater content of electron‐withdrawing moieties possess greater mobility and can work as thickness‐insensitive cathode interfacial layers, which indicates great potential for application in future large‐scale polymer solar cells.

中文翻译：

用于高效聚合物太阳能电池界面工程的共轭聚电解质中的微调组成

共轭聚电解质（CPE）在有机光电器件中作为高效界面材料。介绍了一系列具有可调组成的CPE，旨在研究CPE中主链的演变以及它们对CPE的性能和光伏性能的影响。将吸电子部分引入主链可以改善这些CPE的光稳定性，掺杂强度和电子迁移率。这些CPE可以很好地用作阴极界面层，并通过改善界面接触和诱导界面掺杂来增强器件性能，从而实现功率转换效率大于10％的高效聚合物太阳能电池。而且，

更新日期：2018-03-12

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