Ultrastretchable Transparent Electrodes of Liquid Metal Serpentine Micromeshes

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2024-06-20 DOI:10.1021/acsmaterialslett.4c00385

Cheng Yang, Xiaohui Ma, Xinyuan Zhou, Yong Lin, Weixi Huang, Xing Chen, Qian Wang, Qianying Lu, Yurui Xu, Xinghai Ning* and Desheng Kong*,

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Abstract

Stretchable transparent electrodes are crucial components for deformable electronics. While solid-state electrodes struggle to achieve significant stretchability, liquid metal electrodes have emerged as a potential alternative. However, their widespread application has been limited by their complex fabrication and reduced performance when stretched. This study introduces stretchable transparent electrodes composed of liquid metal in serpentine micromesh patterns. These electrodes are constructed cost-effectively to show high optical transmittance and low sheet resistance. They can endure 800% strain with limited variations in resistance due to the serpentine design. A transparent proximity and touch sensor is combined with soft pneumatic actuators to enable a deformable haptic interface. Additionally, transparent heaters are prepared to conform to the curvilinear body surface, allowing for thermotherapy on subcutaneous tumors while concurrently monitoring the skin’s responses. Liquid metal serpentine micromeshes represent promising transparent electrodes for stretchable devices and systems.

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液态金属蛇形微针的超拉伸透明电极

可拉伸透明电极是可变形电子器件的关键部件。固态电极难以实现显著的可拉伸性，而液态金属电极则成为一种潜在的替代品。然而，由于其复杂的制造工艺和拉伸后的性能降低，其广泛应用受到了限制。本研究介绍了由蛇形微网状液态金属组成的可拉伸透明电极。这些电极的制造成本低，具有高光学透射率和低薄层电阻。由于采用了蛇形设计，它们可以承受 800% 的应变，而电阻变化有限。透明的接近和触摸传感器与软气动致动器相结合，实现了可变形的触觉界面。此外，还准备了透明加热器，以适应曲线体表，从而可以对皮下肿瘤进行热疗，同时监测皮肤的反应。液态金属蛇形微米是用于可拉伸设备和系统的前景广阔的透明电极。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.