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首页> 外文期刊>Advanced Functional Materials >Paper-Like, Thin, Foldable, and Self-Healable Electronics Based on PVA/CNC Nanocomposite Film
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Paper-Like, Thin, Foldable, and Self-Healable Electronics Based on PVA/CNC Nanocomposite Film

机译：基于PVA / CNC纳米复合膜的纸张状，薄型，可折叠，可自愈的电子产品

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摘要

The facile fabrication of thin and foldable self-healing electronics on a poly(vinyl alcohol)/cellulose nanocrystal (PVA/CNC) composite film is reported. The self-healing property of the PVA/CNC nanocomposite film can be activated by spraying water on the film surface, via dynamic formation of hydrogen bonding. The self-healing efficiency of PVA/CNC is influenced by the content of CNC in the film, pH of the spraying solution, and the temperature. Via vacuum filtration and pattern transfer techniques, both a supercapacitor and a temperature sensor are fabricated on the same PVA/CNC film using gold nanosheet (AuNS) and polyaniline/multiwalled nanotube (PANI/MWCNT) electrodes. The fabricated supercapacitor with a gel-type electrolyte exhibits a high electrochemical performance, and the thermoresistive temperature sensor shows a linear sensitivity with a fast response. Both devices exhibit superior mechanical stability and self-healing property over 100 repetitive folding and five repetitive healing cycles, respectively, retaining the device performance owing to the percolated network of the conductive materials. This work demonstrates that our paper-like thin PVA/CNC film-based self-healable devices can serve as highly durable and deformable electronics with longevity.
机译：据报道，在聚乙烯醇/纤维素纳米晶体（PVA / CNC）复合膜上可以轻松制造薄且可折叠的自愈电子器件。 PVA / CNC纳米复合膜的自我修复特性可以通过动态形成氢键，在膜表面喷水来激活。 PVA / CNC的自修复效率受薄膜中CNC含量，喷涂溶液的pH值和温度的影响。通过真空过滤和图案转移技术，使用金纳米片（AuNS）和聚苯胺/多壁纳米管（PANI / MWCNT）电极在同一PVA / CNC膜上制造超级电容器和温度传感器。用凝胶型电解质制成的超级电容器表现出高的电化学性能，并且热阻温度传感器表现出具有快速响应的线性灵敏度。两种器件分别在100次重复折叠和5次重复愈合循环中均显示出优异的机械稳定性和自我修复性能，由于导电材料的渗透网络，从而保持了器件性能。这项工作表明，我们的基于纸的PVA / CNC薄膜薄型自修复设备可以作为具有长寿命的高度耐用且可变形的电子产品。

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