可穿戴电子器件在健康监测、运动检测及智能衣物方面有很大的应用潜力。其舒适性及强大的柔性是对其独特的硬性要求。仅几十年来，主要对可穿戴材料改进的结构设计及材料选用上进行改进。褶皱结构作为应用最多的结构之一拥有良好的可拉伸性、重复性和良好的人机接触相容性。并且，褶皱结构本来就从很多自然结构启发获得，是一种廉价优质结构方式。

本综述简述了近年来褶皱电子器件的相关成果，并讨论了如何制备新型褶皱结构及其在目前最新的比如在连接装置，感应器、半导体、能量存储及转化装置等的应用实例。除此之外，其简单连续的制备操作及更深层次的结构设计被论及，对先进的可穿戴电子器件提供了重要思路。最后一部分，也阐述了褶皱器件的应用前沿及尚存挑战。

Figure 1. Morphogenesis of wrinkling structures in nature. a) SEM images of fixed MD4-B cells with wrinkling surfaces; scale bar: 2 µm. Reproduced with permission.[16a] Copyright 2006, American Association for the Advancement of Science. b) Highly folded brain cortex with bumps and grooves; scale bar: 1 cm. Reproduced with permission.[16b] Copyright 2010, the Royal Society of Chemistry. c) Dehydrated oranges. Reproduced with permission.[32a] Copyright 2017, American Chemical Society. d) The joint of a finger, which has a wrinkled topology. e) Stripe pattern on a blade of grass. f) Aerial photograph of mountains beside the Yellow River. g) Ripples of water, taken at the West Lake. h) An oiled paper umbrella, which exhibits wrinkles in the radial direction. d–h) Photos taken by the authors.

Figure 2. Schematic illustration of buckled structures for wearable electronics. The insets are reprinted from the following sources. 1D buckles: Reproduced with permission.[85] Copyright 2015, Nature Publishing Group. 2D buckles: Reproduced with permission.[27] Copyright 2013, Nature Publishing Group. AgNWs: Reproduced with permission.[34d] Copyright 2012, Wiley-VCH. Cu foil: Reproduced with permission.[30a] Copyright 2015, Wiley-VCH. Fibers: Reproduced with permission.[53c] Copyright 2013, Wiley-VCH. One-directional: Reproduced with permission.[137a] Copyright 2011, Wiley-VCH. Omnidirectional: Reproduced with permission.[30c] Copyright 2016, American Chemical Society. Strain sensors: Reproduced with permission.[62] Copyright 2017, Wiley-VCH. Tactile sensors: Reproduced with permission.[102] Copyright 2017, American Chemical Society

文章链接：https://onlinelibrary.wiley.com/doi/pdf/10.1002/smll.201804805