Here we report an electrostatic-templated self-assembly (ETSA) method for arbitrarily patterning millimeter-sized polymer beads on a nanostructured surface without using an extra voltage source. A patterned electrode underneath an electrification layer generates “potential wells” of the corresponding pattern at predefined window sites, which capture and anchor the beads within the window sites by electrostatic force. Analytical calculation is combined with numerical modeling to derive the electrostatic force acting on the beads, which is in great agreement with experimentally measured values. The generated pattern is solely determined by the predefined underlying electrode, making it arbitrarily switchable by using different electrode patterns. By transferring the assembled beads into an elastomer matrix, possible applications of the ETSA in fabricating optical and flexible displays are demonstrated.

中文翻译：

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摩擦起电诱导的纳米结构表面上的大型聚合物微珠的自组装，用于自供电图案化

在这里，我们报告静电模板自组装（ETSA）方法，用于在纳米结构表面上任意图案化毫米大小的聚合物珠，而无需使用额外的电压源。带电层下面的带图案的电极在预定义的窗口位置生成相应图案的“势阱”，这些势阱通过静电力将磁珠捕获并锚定在窗口位置内。分析计算与数值模型相结合，得出作用在磁珠上的静电力，这与实验测量值非常吻合。生成的图案仅由预定义的下层电极确定，从而可以通过使用不同的电极图案任意切换。通过将组装好的珠粒转移到弹性体基质中，