材料科学
导电体
聚二甲基硅氧烷
薄板电阻
透明导电膜
复合材料
渗透(认知心理学)
聚对苯二甲酸乙二醇酯
薄膜
纳米技术
电导率
渗流阈值
光电子学
电阻率和电导率
图层(电子)
电气工程
工程类
物理化学
生物
神经科学
化学
作者
My Duyen Ho,Yiyi Liu,Dashen Dong,Yunmeng Zhao,Wenlong Cheng
出处
期刊:Nano Letters
[American Chemical Society]
日期:2018-05-16
卷期号:18 (6): 3593-3599
被引量:64
标识
DOI:10.1021/acs.nanolett.8b00694
摘要
Percolation networks of one-dimensional (1D) building blocks (e.g., metallic nanowires or carbon nanotubes) represent the mainstream strategy to fabricate stretchable conductors. One of the inherent limitations is the control over junction resistance between 1D building blocks in natural and strained states of conductors. Herein, we report highly stretchable transparent strain-insensitive conductors using fractal gold (F–Au) nanoframework based on a one-pot templateless wet chemistry synthesis method. The monolayered F–Au nanoframework (∼20 nm in thickness) can be obtained from the one-pot synthesis without any purification steps involved and can be transferred directly to arbitrary substrates like polyethylene terephthalate, food-wrap, polydimethylsiloxane (PDMS), and ecoflex. The F–Au thin film with no capping agents leads to a highly conductive thin film without any post-treatment and can be stretched up to 110% strain without significantly losing conductivity yet with the optical transparency of 70% at 550 nm. Remarkably, the F–Au thin film shows the strain-insensitive behavior up to 20% stretching strain. This originates from the unique fractal nanomesh-like structure which can absorb external mechanical forces, thus maintaining electron pathways throughout the nanoframework. In addition, a semitransparent bilayered F–Au film on 100% prestrained PDMS could achieve to a high stretchability of 420% strain with negligible resistance changes under low-level strains.
科研通智能强力驱动
Strongly Powered by AbleSci AI