Functional polymer nanocomposites with distinctive electrical properties made of nanocarbon structures and biodegradable polymers are promising materials for the development of flexible and eco-friendly smart systems. In this work, a novel electrospun conductive polymer nanocomposite made of polycaprolactone with an exohedral complex made of multiwalled carbon nanotubes and fullerene C60 was prepared and characterized. The preparation was straightforward and the complexes self-assembled within the nanocomposite fibers. The nanocomposite showed electrical switching behavior due to charge accumulation of fullerene C60 upon electrical stimulation. Write-once read-many memory devices were fabricated by electrospinning a nanocomposite with 0.8%wt. fullerene C60 onto interdigitated coplanar electrodes. The device retained the ON state for more than 60 days and could be thermally reset, reprogrammed and erased with subsequent electrical and thermal cycling. Moreover, the electrical resistance of the device could be modulated by applying different programming voltage amplitudes and programming times, which revealed its adaptive behavior and potential application to neuromorphic systems.

由纳米碳结构和可生物降解的聚合物制成的具有独特电性能的功能性聚合物纳米复合材料是开发灵活且环保的智能系统的有前途的材料。在这项工作中，制备并表征了由聚己内酯制成的新型电纺导电聚合物纳米复合材料，以及由多壁碳纳米管和富勒烯C60制成的外表面复合物。制备是直接的，并且复合物在纳米复合纤维内自组装。由于富勒烯C60在电刺激下的电荷积累，因此纳米复合材料显示出电开关行为。一次写入多次读取存储设备是通过电纺0.8％wt的纳米复合材料制成的。富勒烯C60到指状共面电极上。该器件保持开启状态超过60天，可以进行热复位，重新编程和擦除，随后进行电气和热循环。此外，可以通过施加不同的编程电压幅度和编程时间来调制设备的电阻，这揭示了其自适应行为和对神经形态系统的潜在应用。