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Aqueous-Alcohol-Processable High-Mobility Semiconducting Copolymers with Engineered Oligo(ethylene glycol) Side Chains
Chemistry of Materials ( IF 7.2 ) Pub Date : 2020-01-21 , DOI: 10.1021/acs.chemmater.9b04004 Boseok Kang , Ziang Wu 1 , Min Je Kim , Han Young Woo 1 , Jeong Ho Cho 2
Chemistry of Materials ( IF 7.2 ) Pub Date : 2020-01-21 , DOI: 10.1021/acs.chemmater.9b04004 Boseok Kang , Ziang Wu 1 , Min Je Kim , Han Young Woo 1 , Jeong Ho Cho 2
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Replacement of toxic chlorinated solvents with eco- and human-friendly solvents is an important task for the successful implemention of next-generation polymer electronics technology. Herein, we designed and synthesized five aqueous-alcohol-processable conjugated copolymers by incorporating linear or branched oligo(ethylene glycol) side chains and systematically investigated their material and electronic properties. The resulting benzothiadiazole-based donor–acceptor alternating copolymers were well-soluble in both an ethanol/water mixed solvent and a chlorinated solvent, and their thin films showed distinct morphologies and crystalline characteristics that resulted from the self-assembling properties of the engineered side chains. Moreover, the copolymers showed excellent electrical characteristics with high hole mobilities of up to 0.1 cm2 V–1 s–1, which is among the highest values reported thus far for polymer field-effect transistors processed using truly eco- and human-friendly solvents without the use of any surfactants. These results clearly demonstrate the immense potential of branched oligo(ethylene glycol) side chains for application in green electronics.
中文翻译：
具有工程低聚（乙二醇）侧链的水醇可加工高迁移率半导体共聚物
用环保和对人类友好的溶剂替代有毒的氯化溶剂是成功实施下一代聚合物电子技术的重要任务。本文中，我们通过结合线性或支链的低聚（乙二醇）侧链设计并合成了五种可进行水醇加工的共轭共聚物，并系统地研究了它们的材料和电子性能。所得的基于苯并噻二唑的供体-受体交替共聚物在乙醇/水混合溶剂和氯化溶剂中均易溶，并且它们的薄膜显示出明显的形态和结晶特征，这是由工程化侧链的自组装特性导致的。此外，该共聚物还具有出色的电学特性，具有高达0.1 cm的高空穴迁移率2 V –1 s –1，是迄今为止报道的使用真正的环境友好型和人类友好型溶剂而不使用任何表面活性剂处理的聚合物场效应晶体管的最高值。这些结果清楚地证明了支链低聚（乙二醇）侧链在绿色电子学中的巨大潜力。
更新日期：2020-01-22
中文翻译：
具有工程低聚（乙二醇）侧链的水醇可加工高迁移率半导体共聚物
用环保和对人类友好的溶剂替代有毒的氯化溶剂是成功实施下一代聚合物电子技术的重要任务。本文中，我们通过结合线性或支链的低聚（乙二醇）侧链设计并合成了五种可进行水醇加工的共轭共聚物，并系统地研究了它们的材料和电子性能。所得的基于苯并噻二唑的供体-受体交替共聚物在乙醇/水混合溶剂和氯化溶剂中均易溶，并且它们的薄膜显示出明显的形态和结晶特征，这是由工程化侧链的自组装特性导致的。此外，该共聚物还具有出色的电学特性，具有高达0.1 cm的高空穴迁移率2 V –1 s –1，是迄今为止报道的使用真正的环境友好型和人类友好型溶剂而不使用任何表面活性剂处理的聚合物场效应晶体管的最高值。这些结果清楚地证明了支链低聚（乙二醇）侧链在绿色电子学中的巨大潜力。
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