Electrohydrodynamic Printed PEDOT:PSS/Graphene/PVA Circuits for Sustainable and Foldable Electronics
Electrohydrodynamic Printed PEDOT:PSS/Graphene/PVA Circuits for Sustainable and Foldable Electronics
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DOI：
10.1002/admt.202301045
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发表时间：
2023-08
影响因子：
6.8
通讯作者：
Ping Ren;Jingyan Dong
中科院分区：
文献类型：
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作者：
Ping Ren;Jingyan Dong
电子废物的产生对环境构成了重大挑战，因此有必要采取措施延长电子产品的使用寿命，并采用环保材料，使其在处置后能够快速降解。使用环保材料的可折叠电子产品在操作过程中提供更高的耐用性，并在生命周期结束时提供可降解性。然而，在折叠过程期间确保电极/电路与衬底之间的稳健物理粘附仍然是一个挑战，导致界面分层和电子故障。在这项研究中，电流体动力学（EHD）印刷作为一种具有成本效益的方法，通过将PEDOT：PSS/石墨烯复合电路印刷到聚乙烯醇（PVA）薄膜上来制造生态友好的可折叠电子产品。研究了在不同印刷条件下使用具有不同石墨烯和PEDOT：PSS重量比的油墨的印刷图案的形态和电性能。印刷电子器件的可折叠性得到证明，即使在四次折叠（16层）和数百次折叠和展开循环后，也显示出最小的电阻变化和稳定的电子响应。此外，印刷PEDOT：PSS/石墨烯电路的应用被呈现为用于监测体温和呼吸行为的电阻式温度传感器。此外，PEDOT：PSS/石墨烯/PVA为基础的可折叠电子的瞬态功能和降解进行了探讨，突出了潜在的承诺，作为瞬态电子在减少电子废物。
The generation of electronic waste (e‐waste) poses a significant environmental challenge, necessitating strategies to extend electronics’ lifespan and incorporate eco‐friendly materials to enable their rapid degradation after disposal. Foldable electronics utilizing eco‐friendly materials offer enhanced durability during operation and degradability at the end of their life cycle. However, ensuring robust physical adhesion between electrodes/circuits and substrates during the folding process remains a challenge, leading to interface delamination and electronic failure. In this study, electrohydrodynamic (EHD) printing is employed as a cost‐effective method to fabricate the eco‐friendly foldable electronics by printing PEDOT:PSS/graphene composite circuits onto polyvinyl alcohol (PVA) films. The morphology and electrical properties of the printed patterns using inks with varying graphene and PEDOT:PSS weight ratios under different printing conditions are investigated. The foldability of the printed electronics is demonstrated, showing minimal resistance variation and stable electronic response even after four folds (16 layers) and hundreds of folding and unfolding cycles. Additionally, the application of printed PEDOT:PSS/graphene circuit is presented as a resistive temperature sensor for monitoring body temperature and respiration behavior. Furthermore, the transient features and degradation of the PEDOT:PSS/graphene/PVA based foldable electronics are explored, highlighting the potential promise as transient electronics in reducing electronic waste.