Kirigami‐based structures and materials have recently emerged with a variety of geometric transformation capabilities in applications such as flexible electronics, soft robotics, nanophotonics, energy harvesting, and others. Herein, a 2D pattern of cuts (kirigami) that transform into a 3D, one‐piece compliant mechanism that allows for optical tracking over a solid angle sweep of over 110° in two axes is presented. This structure is scaled to an arbitrarily large array, yet the displacement required to achieve the angular sweep remain compact and independent of the number of elements and areal extent of the array. One of the applications of this mechanism is in solar concentration and dual‐axis tracking. Using practical dimensions, 80‐fold or greater concentration is realized. Mutual shadowing of nearby concentrators is assessed along with thermal effects of optical concentration that limit photovoltaic (PV) cell efficiency. The significant reduction in semiconductor usage along with the multiaxis tracking ability reduces the overall cost of solar PV panels. This is projected to make them competitive with stationary silicon panels capable of satisfying the household daily average energy requirement.

中文翻译：

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基于Kirigami的兼容机制，用于多轴光学跟踪和能量收集应用

基于Kirigami的结构和材料最近在各种应用中出现，具有各种几何变换功能，例如柔性电子，软机器人，纳米光子学，能量收集等。在此，提出了一种2D的切割图案（kirigami），该图案转换为3D的单件顺应机构，可以在两个轴上以超过110°的立体角扫掠进行光学跟踪。该结构被缩放到任意大的阵列，但是实现角扫掠所需的位移保持紧凑，并且与阵列的元件数量和面积无关。该机制的应用之一是太阳聚光和双轴跟踪。使用实际尺寸，可以实现80倍或更大的集中度。评估附近集中器的相互阴影以及限制光伏（PV）电池效率的光学集中的热效应。半导体使用量的显着减少以及多轴跟踪功能降低了太阳能光伏板的总成本。预计这将使其与能够满足家庭日均能量需求的固定式硅板竞争。