Ordered Solid-State Microstructures of Conjugated Polymers Arising from Solution-State Aggregation.,Angewandte Chemie International Edition

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Ordered Solid-State Microstructures of Conjugated Polymers Arising from Solution-State Aggregation.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-06-29 , DOI: 10.1002/anie.202007589
Ze-Fan Yao ₁ , Zi-Yuan Wang ₁ , Hao-Tian Wu ₁ , Yang Lu ₁ , Qi-Yi Li ₁ , Lin Zou ₂ , Jie-Yu Wang ₁ , Jian Pei ₁

Affiliation

Controlling the solution‐state aggregation of conjugated polymers for producing specific microstructures remains challenging. Herein, a practical approach is developed to finely tune the solid‐state microstructures through temperature‐controlled solution‐state aggregation and polymer crystallization. High temperature generates significant conformation fluctuation of conjugated backbones in solution, which facilitates the polymer crystallization from solvated aggregates to orderly packed structures. The polymer films deposited at high temperatures exhibit less structural disorders and higher electron mobilities (up to two orders of magnitude) in field‐effect transistors, compared to those deposited at low temperatures. This work provides an effective strategy to tune the solution‐state aggregation to reveal the relationship between solution‐state aggregation and solid‐state microstructures of conjugated polymers.

中文翻译：

由溶液状态聚集引起的共轭聚合物的有序固态微观结构。

控制共轭聚合物的溶液状态聚集以产生特定的微结构仍然具有挑战性。本文提出了一种通过温度控制的溶液状态聚集和聚合物结晶来微调固态微观结构的实用方法。高温会在溶液中产生共轭主链的显着构象波动，从而促进聚合物从溶剂化聚集体到有序堆积结构的结晶。与在低温下沉积的那些相比，在高温下沉积的聚合物膜在场效应晶体管中表现出更少的结构紊乱和更高的电子迁移率（高达两个数量级）。

更新日期：2020-06-29

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