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首页> 外文期刊>Lab on a chip >A galinstan-based inkjet printing system for highly stretchable electronics with self-healing capability
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A galinstan-based inkjet printing system for highly stretchable electronics with self-healing capability

机译：基于加林斯坦的喷墨打印系统，用于具有自我修复功能的高拉伸性电子产品

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摘要

We report a galinstan-based inkjet printing system to realize highly stretchable electronics with self-healing capability. The printing head made of polydimethylsiloxane (PDMS) consists of a main microfluidic channel and a coplanar channel. The main channel containing the oxidized galinstan is surrounded by the coplanar channel, which is filled with HCl. The HCl vapor effectively permeates the channel wall due to the high gas permeability of PDMS. The oxide skin of galinstan is consistently removed by chemical reaction with the HCl vapor. This allows one to maintain galinstan in a true liquid phase in the main channel. After the fabrication of the printing head with PDMS, the sizes of droplets ejected from the printing head with various flow rates have been characterized. The fabricated inkjet printing system is also utilized to generate complex galinstan patterns on various substrates. An LED-integrated circuit with self-healing capability shows excellent electrical and mechanical performance even after it is twisted more than 180 degrees or stretched up to similar to 60% more than 2000 times. The experimental results reveal that the proposed system has tremendous potential for stretchable electronic applications in the future.
机译：我们报告了基于加林斯坦的喷墨打印系统，以实现具有自我修复功能的高度可拉伸的电子产品。由聚二甲基硅氧烷（PDMS）制成的打印头由一个主微流体通道和一个共面通道组成。包含氧化的Galinstan的主通道被共面通道包围，该共面通道充满HCl。由于PDMS的高气体渗透性，HCl蒸气有效地渗透到通道壁中。通过与HCl蒸气进行化学反应，始终去除加仑斯坦的氧化皮。这使得人们可以在主通道中将加林斯坦维持在真正的液相中。在用PDMS制造打印头之后，已经表征了以各种流速从打印头喷射的液滴的尺寸。所制造的喷墨打印系统还用于在各种基材上生成复杂的盖林图案。具有自我修复能力的LED集成电路即使在扭曲超过180度或拉伸超过2000倍至60％时，仍具有出色的电气和机械性能。实验结果表明，该系统在未来可扩展的电子应用中具有巨大的潜力。

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