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陈志宏、方锐和李维等撰写的论文被Advanced Materials接收

发布时间:2019-04-09
     祝贺陈志宏、方锐和李维等撰写的综述论文“Stretchable transparent conductors: from micro-/macromechanics to applications”被材料学科国际顶级期刊Advanced Materials(影响因子21.95)接收。可拉伸透明导体是一类由可拉伸导电网络和柔性透明基体复合而成的导电薄膜材料,它能克服铟锡氧化物导电薄膜质脆、价格昂贵等缺点,是可拉伸/可穿戴光电器件、能量转换存储器件和电子皮肤中的关键基础材料,也是当前材料科学研究的国际前沿和热点之一。本综述聚焦于可拉伸透明导体中导电组分与柔性基体间的相互作用对导电组分-柔性基体微观界面力学行为、导电网络宏观力学行为、可拉伸透明导体的性能和器件应用等的依赖性关系进行了评述。论文首先评述了导电元件在基底上的拉伸微观力学,包括力学失配、界面剪应力的分布/水平以及导电组分在基底上的变形行为等。然后,从统计的角度进一步阐述了导电网络拉伸的宏观力学,即渗流网络的滑动/择优取向、弯曲结构的展开和单元格畸变/分布破裂。紧接着总结了STCs的结构依赖性质和目前的应用,并在最后提出了该领域今后的发展方向。该综述有助于为该领域研究者进一步理清现存问题及未来研究方向,并对新型可拉伸透明电极及其器件的设计和制备提供参考思路。

    原文摘要如下:Stretchable transparent conductors (STCs), generally consisting of conducting networks and stretchable transparent elastomers, can maintain stable conductivity and transparency even at large tensile strain, beyond the reach of rigid/flexible transparent conductors. They are essential components in stretchable/wearable electronics for using on irregular 3-D conformable surfaces, and have attracted tremendous attention in recent years. This review aims to provide systematical correlations of the conducting element-substrate interaction with the structural stability of conducting networks, as well as the properties and device applications of STCs. It starts with the micromechanics for stretching of conducting elements on substrates, including the mechanical mismatch, distribution/level of interfacial shear stress and the deformation behavior of conducting elements on substrates. Then, the macromechanics for stretching of conducting networks on substrates is further illustrated from a more statistical point of view, namely sliding/preferred orientation of percolation networks, unfolding of buckled structures and unit cell distortion/distributed rupture of namomeshes. The structure-dependent properties, as well as the state-of-the-art applications of STCs are summarized before ending with the conclusions and outlooks for STCs.

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