Zhang Junjie, Jin Zhenhu, Chen Guangyuan, Chen Jiamin
State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China.
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China.
Microsyst Nanoeng. 2024 Aug 12;10:109. doi: 10.1038/s41378-024-00716-2. eCollection 2024.
In recent years, there has been a significant increase in the prevalence of electronic wearables, among which flexible magnetoelectronic skin has emerged as a key component. This technology is part of the rapidly progressing field of flexible wearable electronics, which has facilitated a new human perceptual development known as the magnetic sense. However, the magnetoelectronic skin is limited due to its low sensitivity and substantial field limitations as a wearable electronic device for sensing minor magnetic fields. Additionally, achieving efficient and non-destructive delamination in flexible magnetic sensors remains a significant challenge, hindering their development. In this study, we demonstrate a novel magnetoelectronic touchless interactive device that utilizes a flexible giant magnetoresistive sensor array. The flexible magnetic sensor array was developed through an electrochemical delamination process, and the resultant ultra-thin flexible electronic system possessed both ultra-thin and non-destructive characteristics. The flexible magnetic sensor is capable of achieving a bending angle of up to 90 degrees, maintaining its performance integrity even after multiple repetitive bending cycles. Our study also provides demonstrations of non-contact interaction and pressure sensing. This research is anticipated to significantly contribute to the advancement of high-performance flexible magnetic sensors and catalyze the development of more sophisticated magnetic electronic skins.
近年来，电子可穿戴设备的普及率显著上升，其中柔性磁电子皮肤已成为关键组件。这项技术是快速发展的柔性可穿戴电子领域的一部分，它推动了一种名为磁觉的新人类感知发展。然而，作为一种用于检测微小磁场的可穿戴电子设备，磁电子皮肤因其低灵敏度和较大的磁场限制而受到局限。此外，在柔性磁传感器中实现高效无损分层仍然是一个重大挑战，阻碍了它们的发展。在本研究中，我们展示了一种利用柔性巨磁阻传感器阵列的新型磁电子非接触交互设备。柔性磁传感器阵列是通过电化学分层工艺开发的，所得的超薄柔性电子系统具有超薄和无损的特性。柔性磁传感器能够实现高达90度的弯曲角度，即使经过多次重复弯曲循环，仍能保持其性能完整性。我们的研究还展示了非接触交互和压力传感。预计这项研究将对高性能柔性磁传感器的发展做出重大贡献，并推动更先进的磁电子皮肤的开发。
