A High Aspect Ratio Serpentine Structure for Use As a Strain‐Insensitive, Stretchable Transparent Conductor,Small

当前位置： X-MOL 学术 › Small › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A High Aspect Ratio Serpentine Structure for Use As a Strain‐Insensitive, Stretchable Transparent Conductor
Small ( IF 13.0 ) Pub Date : 2017-12-27 , DOI: 10.1002/smll.201702818
Sungwoo Jang ₁ , Choelgyu Kim ₂ , Jung Jin Park ₁ , Ming Liang Jin ₁ , Seon Joon Kim ₁ , O Ok Park ₁ , Taek-Soo Kim ₂ , Hee-Tae Jung _{1,

3}

Affiliation

The development of strain‐insensitive stretchable transparent conductors (TCs) is essential for manufacturing stretchable electronics. Despite recent progress, achieving a high optoelectronic performance under applied strain of 50% continues to present a significant challenge in this research field. Herein, an ultratall and ultrathin high aspect ratio serpentine metal structure is described that exhibits a remarkable stretching ability (the resistance remains constant under applied strain of 100%) and simultaneously provides an excellent transparent conducting performance (with a sheet resistance of 7.6 Ω ⁻¹ and a transmittance of 90.5%). It is demonstrated that the highly stretchable transparent conducting properties can be attributed to the high aspect ratio feature. A high aspect ratio (aspect ratio of 17–367) structure permits facile deformation of the serpentine structure with in‐plane motion, leading to a high stretching ability. In addition, this structural feature avoids the classic tradeoff between optical transmittance and electrical conductance, providing a high electrical conductance without decreasing the optical transmittance. The practical utility of these devices is tested by using these TCs as stretchable interconnectors among LEDs or in wearable VOC gas sensors.

中文翻译：

高纵横比的蛇形结构，用作应变不敏感的可拉伸透明导体

对应变不敏感的可拉伸透明导体（TC）的开发对于制造可拉伸电子产品至关重要。尽管有最新进展，但在50％的施加应变下实现高光电性能仍然是该研究领域的重大挑战。本文所用的ultratall和超薄高纵横比蛇形金属结构描述了表现出显着的拉伸能力（电阻保持100％的外加应变下的常数），并且同时提供了极好的透明导电性能（用7.6Ω的表面电阻 ^{- 1个}和90.5％的透光率）。证明了高度可拉伸的透明导电性能可归因于高纵横比特征。高纵横比（纵横比为17–367）结构允许蛇形结构在平面内运动时容易变形，从而具有较高的拉伸能力。另外，该结构特征避免了光透射率和电导率之间的经典折衷，从而在不降低光透射率的情况下提供了高电导率。通过将这些TC用作LED之间或可穿戴的VOC气体传感器中的可伸缩互连器，来测试这些设备的实际实用性。

更新日期：2017-12-27

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11