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首页> 外文期刊>RSC Advances >Bio-inspired semi-transparent silver nanowire conductor based on a vein network with excellent electromechanical and photothermal properties
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Bio-inspired semi-transparent silver nanowire conductor based on a vein network with excellent electromechanical and photothermal properties

机译：基于静脉网络的具有生物启发性的半透明银纳米线导体，具有出色的机电和光热性能

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摘要

A bio-inspired conductive binary-network of vein–silver nanowires (AgNWs) was embedded in poly(dimethylsiloxane) (PDMS) to prepare a semi-transparent stretchable conductor (vein–AgNWs–PDMS) by a simple dipping process. The special conductive structure was constructed by using veins with a porous structure as an ideal skeleton to load AgNW networks, which allowed the vein–AgNWs–PDMS composite to show a low sheet resistance of 1 Ω sq ~(?1) with 74% transmittance. The figure of merit of vein–AgNWs–PDMS is as high as 2502 and can be adjusted easily by controlling the times of the dipping cycle. Furthermore, the vein–AgNWs–PDMS conductor can retain high conductivity after 150% mechanical elongation and exhibit excellent electromechanical stability in repeated stretch/release tests with 60% strain (500 cycles). As an example of an application, patterned light-emitting diode (LED) arrays using the vein–AgNWs–PDMS conductors have been fabricated, and worked well under deformation. Moreover, the photo-thermal properties of the vein–AgNWs–PDMS composite have been demonstrated by a position heating experiment using near-infrared (NIR) laser irradiation and the generated heat can be effectively dissipated through the vein network to avoid local overheating. Due to the high-performance and facile fabrication process, the vein–AgNWs–PDMS conductors will have multifunctional applications in stretchable electronic devices.
机译：将生物启发的静脉-银纳米线（AgNWs）导电二元网络嵌入聚二甲基硅氧烷（PDMS）中，通过简单的浸渍工艺即可制备出半透明的可拉伸导体（静脉-AgNWs-PDMS）。通过使用具有多孔结构的静脉作为加载AgNW网络的理想骨架来构造特殊的导电结构，这使静脉– AgNWs –PDMS复合材料显示出1Ωsq〜（？1）的低薄层电阻，透光率达74％ 。静脉– AgNWs – PDMS的品质因数高达2502，可以通过控制浸泡周期的时间轻松进行调整。此外，静脉-AgNWs-PDMS导体在150％的机械伸长后可以保持高导电性，并且在重复的60％应变（500次循环）拉伸/释放测试中表现出出色的机电稳定性。作为一个应用示例，已经制造出使用静脉-AgNWs-PDMS导体的图案化发光二极管（LED）阵列，并且在变形下工作良好。此外，静脉-AgNWs-PDMS复合材料的光热特性已通过使用近红外（NIR）激光辐照的位置加热实验得到证明，所产生的热量可通过静脉网络有效消散，从而避免局部过热。由于高性能和便捷的制造工艺，静脉– AgNWs – PDMS导体将在可拉伸电子设备中具有多功能应用。

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