Advanced Materials·· 6 小时前精选AI 评分62
岛桥结构液态金属墨水实现无活化导电与300%应变下稳定方阻
Activation‐Free and Strain‐Resilient Island‐Bridge Liquid Metal Inks for Machine‐Learning‐Enabled Epidermal Electromyography
AI 导读
研究报道了一种本征导电、耐应变的液态金属墨水，采用岛桥微结构：Cu修饰碳纳米管（CuCNT）先通过氢键/配位作用附着在液态金属颗粒（LMP）表面的氧化镓壳层上，再在CuCNT/LMP界面发生局部Cu-Ga合金化，从而桥接相邻LMP。
推荐理由
原文给出该液态金属墨水在300%应变下仍保持1.3×10⁻¹ Ω sq⁻¹方块电阻，读者可据此判断无活化导电墨水在可拉伸电极中的位置。
创新点
用CuCNT在液态金属颗粒间构建可动态重构的岛桥网络，并以界面Cu-Ga合金化替代传统机械或溶剂活化步骤，使墨水在印刷后即具导电性且在300%应变下保持低方块电阻。
来源：Advanced Materials · doi.org
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