Jun-Da Huang, Qifan Li, Qingqing Wang, Tiefeng Liu, Sang Young Jeong, Sri Harish Kumar Paleti, Tom P. A. van der Pol, Kai Xu, Han-Yan Wu, Natalie Pinchin, Marc-Antoine Stoeckel, Wenlong Jin, Aleksandr Perevedentsev, Xianjie Liu, Juan Sebastián Reparaz, Mariano Campoy-Quiles, Han Young Woo, Christian Müller, Mats Fahlman, Chi-Yuan Yang, Simone Fabiano
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引用次数: 0
摘要
导电聚合物在推进各种电子应用方面已变得至关重要。虽然p型材料如聚(3,4-乙烯二氧噻吩):聚苯乙烯磺酸盐(PEDOT:PSS)被广泛使用和大规模生产,但高性能n型聚合物的开发由于合成和可扩展性方面的挑战而滞后。本文介绍了一种以α-生育酚醌(α-TQ)为催化剂合成高导电性n型聚合物聚苯并二呋喃二酮(pbdo)的新方法。这种方法消除了反应后透析的需要,这是大规模生产pbdo的主要障碍。通过防止催化剂聚集,实现了高导电性(>1320 S cm−1),在空气中保持稳定超过180天,大大简化了工艺。α- tq合成的pbdo还表现出优异的热电性能,功率因数超过100 μ W m−1 K−2,是性能最好的n型热电聚合物之一。此外,残余的α-TQ作为增塑剂,在保持高导电性的同时,将弹性模量降低十倍以上,使该材料适用于机械柔性电子产品。同样,残留的α-TQ使pbdo的导热系数降低了一个数量级以上。该工艺是可扩展的,正如在20升反应器中生产高导电性油墨所证明的那样。这项工作为大规模生产n型聚合物提供了一种高效和可持续的方法。
Preventing Benzoquinone-Based Catalyst Aggregation Enables the One-Step Synthesis of Highly Conductive Poly(benzodifurandione) without Post-Reaction Purification
Conductive polymers have become crucial in advancing various electronic applications. While p-type materials like poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) are widely used and produced at scale, the development of high-performance n-type polymers has lagged due to challenges in synthesis and scalability. In this work, a novel method is introduced to synthesize the highly conductive n-type polymer poly(benzodifurandione) (PBFDO) using α-tocopherylquinone (α-TQ) as a catalyst. This approach eliminates the need for post-reaction dialysis, a major obstacle to large-scale PBFDO production. By preventing catalyst aggregation, high electrical conductivity (>1320 S cm−1) is achieved, which remains stable in air for over 180 d, significantly simplifying the process. The α-TQ-synthesized PBFDO also exhibits excellent thermoelectric properties, with a power factor exceeding 100 µW m−1 K−2, placing it among the highest-performing n-type thermoelectric polymers. Additionally, residual α-TQ acts as a plasticizer, reducing the elastic modulus by over tenfold while maintaining high conductivity, making this material suitable for mechanically compliant electronics. Similarly, residual α-TQ lowers the thermal conductivity of PBFDO by more than an order of magnitude. The process is scalable, as demonstrated by producing high-conductivity ink in a 20 L reactor. This work presents an efficient and sustainable approach for large-scale n-type polymer production.
期刊介绍:
Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.