A wearable in-sensor computing platform based on stretchable organic electrochemical transistors

IF 33.7 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Dingyao Liu, Xinyu Tian, Jing Bai, Shaocong Wang, Shilei Dai, Yan Wang, Zhongrui Wang, Shiming Zhang
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Abstract

Organic electrochemical transistors could be used in in-sensor computing and wearable healthcare applications. However, they lack the conformity and stretchability needed to minimize mechanical mismatch between the devices and human body, are challenging to fabricate at a scale with small feature sizes and high density, and require miniaturized readout systems for practical on-body applications. Here we report a wearable in-sensor computing platform based on stretchable organic electrochemical transistor arrays. The platform offers more than 50% stretchability by using an adhesive supramolecular buffer layer during fabrication that improves robustness at interfaces under strain. We fabricate stretchable transistor arrays with feature sizes down to 100 μm using a high-resolution six-channel inkjet printing system. We also develop a coin-sized data readout system for biosignal acquisition. We show that our coin-sized, smartwatch-compatible electronic module can provide wearable in-sensor edge computing.

Abstract Image

基于可拉伸有机电化学晶体管的可穿戴传感计算平台
有机电化学晶体管可用于传感器计算和可穿戴医疗保健应用。然而,有机电化学晶体管缺乏最大限度减少器件与人体之间机械不匹配所需的保形性和可拉伸性,以小特征尺寸和高密度制造具有挑战性,并且需要微型化的读出系统才能实现实际的体内应用。在此,我们报告了一种基于可拉伸有机电化学晶体管阵列的可穿戴传感计算平台。该平台在制造过程中使用了粘合超分子缓冲层,提高了应变下界面的稳健性,从而提供了 50% 以上的可拉伸性。我们利用高分辨率六通道喷墨打印系统制造出特征尺寸小至 100 μm 的可拉伸晶体管阵列。我们还开发了一种硬币大小的数据读出系统,用于生物信号采集。我们的研究表明,我们的硬币大小、与智能手表兼容的电子模块可以提供可穿戴的传感器边缘计算。
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来源期刊
Nature Electronics
Nature Electronics Engineering-Electrical and Electronic Engineering
CiteScore
47.50
自引率
2.30%
发文量
159
期刊介绍: Nature Electronics is a comprehensive journal that publishes both fundamental and applied research in the field of electronics. It encompasses a wide range of topics, including the study of new phenomena and devices, the design and construction of electronic circuits, and the practical applications of electronics. In addition, the journal explores the commercial and industrial aspects of electronics research. The primary focus of Nature Electronics is on the development of technology and its potential impact on society. The journal incorporates the contributions of scientists, engineers, and industry professionals, offering a platform for their research findings. Moreover, Nature Electronics provides insightful commentary, thorough reviews, and analysis of the key issues that shape the field, as well as the technologies that are reshaping society. Like all journals within the prestigious Nature brand, Nature Electronics upholds the highest standards of quality. It maintains a dedicated team of professional editors and follows a fair and rigorous peer-review process. The journal also ensures impeccable copy-editing and production, enabling swift publication. Additionally, Nature Electronics prides itself on its editorial independence, ensuring unbiased and impartial reporting. In summary, Nature Electronics is a leading journal that publishes cutting-edge research in electronics. With its multidisciplinary approach and commitment to excellence, the journal serves as a valuable resource for scientists, engineers, and industry professionals seeking to stay at the forefront of advancements in the field.
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