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Graded intrafillable architecture-based iontronic pressure sensor with ultra-broad-range high sensitivity
Name
s41467-019-14054-9.pdf
Description
Published version
Size
3.32 MB
Format
Adobe PDF
Checksum (MD5)
71833883e93d7c03af1cea8b54be6474
Author(s)
Bai, Ningning
Wang, Liu
Wang, Qi
Deng, Jue
Wang, Yan
Lu, Peng
Huang, Jun
Li, Gang
Zhang, Yuan
Yang, Junlong
Date Issued
2020
Journal
Nature Communications
Publisher
Springer Science and Business Media LLC
Version
Final published version
Abstract
© 2020, The Author(s). Sensitivity is a crucial parameter for flexible pressure sensors and electronic skins. While introducing microstructures (e.g., micro-pyramids) can effectively improve the sensitivity, it in turn leads to a limited pressure-response range due to the poor structural compressibility. Here, we report a strategy of engineering intrafillable microstructures that can significantly boost the sensitivity while simultaneously broadening the pressure responding range. Such intrafillable microstructures feature undercuts and grooves that accommodate deformed surface microstructures, effectively enhancing the structural compressibility and the pressure-response range. The intrafillable iontronic sensor exhibits an unprecedentedly high sensitivity (Smin > 220 kPa−1) over a broad pressure regime (0.08 Pa-360 kPa), and an ultrahigh pressure resolution (18 Pa or 0.0056%) over the full pressure range, together with remarkable mechanical stability. The intrafillable structure is a general design expected to be applied to other types of sensors to achieve a broader pressure-response range and a higher sensitivity.
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
10.1038/S41467-019-14054-9
