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Multilayer Double-Sided Microstructured Flexible Iontronic Pressure Sensor with a Record-wide Linear Working Range
ACS Sensors ( IF 8.2 ) Pub Date : 2021-05-05 , DOI: 10.1021/acssensors.0c02547 Yan Xiao 1 , Yu Duan 1 , Ning Li 1 , Linlin Wu 1 , Bo Meng 1 , Feihu Tan 1 , Yan Lou 2 , Hao Wang 2 , Weiguan Zhang 2 , Zhengchun Peng 1
ACS Sensors ( IF 8.2 ) Pub Date : 2021-05-05 , DOI: 10.1021/acssensors.0c02547 Yan Xiao 1 , Yu Duan 1 , Ning Li 1 , Linlin Wu 1 , Bo Meng 1 , Feihu Tan 1 , Yan Lou 2 , Hao Wang 2 , Weiguan Zhang 2 , Zhengchun Peng 1
Affiliation
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Wearable electronics, electronic skins, and human–machine interfaces demand flexible sensors with not only high sensitivity but also a wide linear working range. The latter remains a great challenge and has become a big hurdle for some of the key advancements imperative to these fields. Here, we present a flexible capacitive pressure sensor with ultrabroad linear working range and high sensitivity. The dielectric layer of the sensor is composed of multiple layers of double-sided microstructured ionic gel films. The multilayered structure and the gaps between adjacent films with random topography and size enhance the compressibility of the sensor and distribute the stress evenly to each layer, enabling a linear working range from 0.013 to 2063 kPa. Also, the densely distributed protrusive microstructures in the electric double layer contribute to a sensitivity of 9.17 kPa–1 for the entire linear working range. For the first time, a highly sensitive pressure sensor that can measure loading conditions across 6 orders of magnitude is demonstrated. With the consistent and stable performance from a low- to high-measurement range, the proposed pressure sensor can be used in many applications without the need for recalibration to suit different loading scenarios.
中文翻译：
具有创纪录宽线性工作范围的多层双面微结构柔性离子电子压力传感器
可穿戴电子产品、电子皮肤和人机界面需要不仅具有高灵敏度而且具有宽线性工作范围的灵活传感器。后者仍然是一个巨大的挑战，并已成为这些领域某些关键进步的一大障碍。在这里，我们提出了一种具有超宽线性工作范围和高灵敏度的灵活电容压力传感器。传感器的介电层由多层双面微结构离子凝胶薄膜组成。多层结构以及具有随机形貌和尺寸的相邻薄膜之间的间隙增强了传感器的可压缩性，并将应力均匀分布到每一层，实现了 0.013 至 2063 kPa 的线性工作范围。还，–1适用于整个线性工作范围。首次展示了可以测量 6 个数量级的负载条件的高灵敏度压力传感器。凭借从低到高测量范围的一致和稳定的性能，所提出的压力传感器可用于许多应用，无需重新校准以适应不同的负载情况。
更新日期：2021-05-28
中文翻译：
具有创纪录宽线性工作范围的多层双面微结构柔性离子电子压力传感器
可穿戴电子产品、电子皮肤和人机界面需要不仅具有高灵敏度而且具有宽线性工作范围的灵活传感器。后者仍然是一个巨大的挑战，并已成为这些领域某些关键进步的一大障碍。在这里，我们提出了一种具有超宽线性工作范围和高灵敏度的灵活电容压力传感器。传感器的介电层由多层双面微结构离子凝胶薄膜组成。多层结构以及具有随机形貌和尺寸的相邻薄膜之间的间隙增强了传感器的可压缩性，并将应力均匀分布到每一层，实现了 0.013 至 2063 kPa 的线性工作范围。还，–1适用于整个线性工作范围。首次展示了可以测量 6 个数量级的负载条件的高灵敏度压力传感器。凭借从低到高测量范围的一致和稳定的性能，所提出的压力传感器可用于许多应用，无需重新校准以适应不同的负载情况。
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