聚(苯并二呋喃二酮)半导体纤维有机电化学晶体管

Poly(benzodifuran-dione) semiconductor fiber-based organic electrochemical transistors

摘要

为拓展n型纤维有机电化学晶体管(organic electrochemical transistors,OECTs)种类,进一步提升n型纤维 OECTs电化学调制性能以及与可穿戴纺织品的无缝集成能力,提升 OECTs器件在智能可穿戴领域的应用潜力,本文采用湿法纺丝法制备了聚 (苯并二呋喃二酮)(poly (benzodifurandione),PBFDO)纤维,表征并探究了其微观结构和化学组成,并以其为半导体活性层成功构建了高性能纤维型 OECTs。所制备的纤维 OECTs展示了优异的电化学调制性能(归一化跨导>600 S/cm,载流子迁移率与体积电容乘积(μC*)达1074.88 F/(cm·V·s))以及良好的工作稳定性。此外,PBFDO 纤维表现出优异的力学性能(最大断裂强度约200 MPa)和卓越的柔性集成潜力。本研究所构建的PBFDO 纤维 OECTs有望推动 OECTs在智能可穿戴电子设备及柔性电子器件领域的进一步应用。

Abstract

Expanding the range of n-type fiber organic electrochemical transistors (OECTs) is crucial for enhancing their electrochemical modulation performance, improving seamless integration with wearable textiles, and advancing their applications in smart wearable electronics. In this study, poly(benzodifurandione) (PBFDO) fibers were successfully fabricated via the wet-spinning method, maintaining their structural integrity and chemical stability. The microstructure and composition of the fibers were systematically characterized, and high-performance fiber-based OECTs were constructed using PBFDO fibers as the semiconductor active layer. These fiber OECTs exhibited exceptional electrochemical modulation capability, with a maximum normalized transconductance exceeding 600 S/cm and a charge transport-capacitance product (μC*) of 1 074.88 F/(cm·V·s), alongside excellent operational stability. Furthermore, the PBFDO fibers displayed remarkable mechanical robustness, with a maximum tensile strength of about 200 MPa, and superior flexibility, enabling their integration into flexible electronic systems. The development of PBFDO fiber OECTs in this study paves the way for their widespread adoption in next-generation smart wearable electronics and flexible bioelectronic devices.

关键词

半导体纤维 / 有机电化学晶体管 / 聚(苯并二呋喃二酮) / 湿法纺丝 / 智能可穿戴设备

Key words

semiconductor fiber / organic electrochemical transistor / poly(benzodifurandione) / wet spinning / smart wearable device

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基金资助

山东省重点研发计划资助(2024CXGC010411)

泰山产业领军人才工程专项经费资助(tscx202408117)