Green Synthesis of Lactone-Based Conjugated Polymers for n-Type Organic Electrochemical Transistors

Wang Yazhou; Zeglio Erica; Wang LewenCong ShengyuZhu GenmingLiao HailiangDuan JiayaoZhou YechengLi ZhengkeMawad DamiaHerland AnnaYue WanMcCulloch Iain

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Green Synthesis of Lactone-Based Conjugated Polymers for n-Type Organic Electrochemical Transistors

机译：Green Synthesis of Lactone-Based Conjugated Polymers for n-Type Organic Electrochemical Transistors

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As new and better materials are implemented for organic electrochemical transistors (OECTs), it becomes increasingly important to adopt more economic and environmentally friendly synthesis pathways with respect to conventional transition-metal-catalyzed polymerizations. Herein, a series of novel n-type donor-acceptor-conjugated polymers based on glycolated lactone and bis-isatin units are reported. All the polymers are synthesized via green and metal-free aldol polymerization. The strong electron-deficient lactone-building blocks provide low-lying lowest unoccupied molecular orbital (LUMO) and the rigid backbone needed for efficient electron mobility up to 0.07 cm(2) V-1 s(-1). Instead, polar atoms in the backbone and ethylene glycol side chains contribute to the ionic conductivity. The resulting OECTs exhibit a normalized maximum transconductance g(m,norm) of 0.8 S cm(-1) and a mu C* of 6.7 F cm(-1) V-1 s(-1). Data on the microstructure show that such device performance originates from a unique porous morphology together with a highly disordered amorphous microstructure, leading to efficient ion-to-electron coupling. Overall, the design strategy provides an inexpensive and metal-free polymerization route for high-performing n-type OECTs.

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《Advanced functional materials》 |2022年第16期|2111439.1-2111439.11|共11页
作者
Wang Yazhou; Zeglio Erica; Wang LewenCong ShengyuZhu GenmingLiao HailiangDuan JiayaoZhou YechengLi ZhengkeMawad DamiaHerland AnnaYue WanMcCulloch Iain;
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Univ Oxford, Chem Res Lab, Dept Chem, Oxford OX1 3TA, England;

Sun Yat Sen Univ, Sch Mat Sci & Engn,State Key Lab Optoelect Mat &, Guangzhou Key Lab Flexible Elect Mat & Wearable D, Minist Educ,Key Lab Polymer Composite & Funct Mat, Guangzhou 510275, Peoples R China;

KTH Royal Inst Technol, EECS & Digital Futures, Dept Micro & Nano Syst, S-10044 Stockholm, SwedenUniv New South Wales UNSW, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia|Univ New South Wales UNSW, Australian Ctr NanoMed, Sydney, NSW 2052, AustraliaKTH Royal Inst Technol, EECS, Dept Micro & Nano Syst, S-10044 Stockholm, Sweden|Karolinska Inst, Dept Neurosci, Ctr Integrated Med & Engn Sci, AIMES, S-17177 Stockholm, Sweden;

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conjugated polymer; green chemistry; n-type organic semiconductor; organic electrochemical transistor; sustainable design;

Green Synthesis of Lactone-Based Conjugated Polymers for n-Type Organic Electrochemical Transistors

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