For the development of wearable electronics, the replacement of rigid, metallic components with fully elastomeric materials is crucial. However, current elastomeric electrodes suffer from low electrical conductivity and poor electrical stability. Herein, a metal-like conductive elastomer with exceptional electrical performance and stability is presented, which is used to fabricate fully elastomeric electronics. The key feature of this material is its wrinkled structure, which is induced by in situ cooperation of solvent swelling and densely packed nanoparticle assembly. Specifically, layer-by-layer assembly of metal nanoparticles and small-molecule linkers on elastomers generates the hierarchical wrinkled elastomer. The elastomer demonstrates remarkable electrical conductivity (170 000 and 11 000 S cm-1 at 0% and 100% strain, respectively), outperforming previously reported elastomeric electrodes based on nanomaterials. Furthermore, a fully elastomeric triboelectric nanogenerator based on wrinkled elastomeric electrode exhibits excellent electric power generation performance due to the compressible, large contact area of the wrinkled surface during periodic contact and separation.

中文翻译：

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具有分层皱纹结构的类似金属的导电弹性体。

对于可穿戴电子设备的开发，用完全弹性的材料代替刚性金属部件至关重要。然而，当前的弹性体电极具有低电导率和差的电稳定性。在此，提出了具有优异的电性能和稳定性的类金属的导电弹性体，其用于制造完全弹性的电子器件。这种材料的关键特征是其起皱的结构，这是由溶剂溶胀和紧密堆积的纳米颗粒组装体的原位协同作用引起的。具体而言，金属纳米颗粒和小分子连接体在弹性体上的逐层组装会产生分层的起皱弹性体。弹性体具有出色的导电性（在0％和100％应变下分别为170 000和11000 S cm-1），优于先前报道的基于纳米材料的弹性体电极。此外，由于在周期性接触和分离期间起皱表面的可压缩的大接触面积，基于起皱弹性电极的全弹性摩擦电纳米发电机表现出优异的发电性能。