Constructing Electrophoretic Displays on Foldable Paper-Based Electrodes by a Facile Transferring Method,ACS Applied Electronic Materials

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Constructing Electrophoretic Displays on Foldable Paper-Based Electrodes by a Facile Transferring Method
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2020-04-05 , DOI: 10.1021/acsaelm.0c00129
Zhi He ₁ , Li Wang ₂ , Gui-Shi Liu ₃ , Yuwang Xu ₁ , Zhiguang Qiu ₁ , Min Zhong ₁ , Xiaodong Li ₁ , Xuchun Gui ₁ , Yu-Sheng Lin ₁ , Zong Qin ₁ , Jin Wu ₁ , Xi Xie ₁ , Chuan Liu ₁ , Bo-Ru Yang ₁

Affiliation

Paper-based electronics are gaining increasing attention because of their merits of low cost, degradability, and foldability. However, the roughness and porosity of paper are not conducive to the deposition of functional layers by conventional film-coating methods such as solution processing and vacuum evaporation. In this work, a facile yet feasible process to fabricate a paper-based electrophoretic display (EPD) was demonstrated. This device combines the eco-friendly characteristic of paper with the low power consumption of an EPD by using optically clear adhesive (OCA) and silver nanowires (AgNWs). The AgNW/OCA/paper composite layer could maintain high conductivity after 1000-cycle folding tests, whereas AgNWs spray-deposited on printing paper lost their conductivity after only 400 folding–unfolding cycles. To optimize the trade-off between the optical transmittance and the sheet resistance of the AgNW/OCA top electrode, the concentration of AgNW ink and the surface energy of the UV-curable polymer layer were adjusted, achieving a figure-of-merit value of 287. The paper-based EPD demonstrated in this work has the merits of foldability, disposability, environmental friendliness, low cost, and low power consumption, presenting an alternative for future application scenarios of displays.

中文翻译：

方便转移法在可折叠纸基电极上构建电泳显示器

纸质电子产品因其低成本，可降解性和可折叠性的优点而受到越来越多的关注。然而，纸张的粗糙度和孔隙率不利于通过常规的膜涂布方法例如溶液处理和真空蒸发沉积功能层。在这项工作中，展示了一种制造纸基电泳显示器（EPD）的简便而可行的方法。通过使用光学透明粘合剂（OCA）和银纳米线（AgNWs），该设备将纸张的环保特性与EPD的低功耗相结合。经过1000次循环折叠测试后，AgNW / OCA /纸复合层可以保持较高的电导率，而喷印沉积在打印纸上的AgNW仅经过了400次折叠-展开循环便失去了电导率。

更新日期：2020-04-05

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