Flexible and transparent capacitive pressure sensor with patterned microstructured composite rubber dielectric for wearable touch keyboard application

Ruilong Shi; Zheng Lou; Shuai Chen; Guozhen Shen

doi:10.1007/s40843-018-9267-3

Flexible and transparent capacitive pressure sensor with patterned microstructured composite rubber dielectric for wearable touch keyboard application

Ruilong Shi, Zheng Lou^*, Shuai Chen, Guozhen Shen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

141 Citations (Scopus)

Abstract

The development of pressure sensors with highly sensitivity, fast response and facile fabrication technique is desirable for wearable electronics. Here, we successfully fabricated a flexible transparent capacitive pressure sensor based on patterned microstructured silver nanowires (AgNWs)/polydimethylsiloxane (PDMS) composite dielectrics. Compared with the pure PDMS dielectric layer with planar structures, the patterned microstructured sensor exhibits a higher sensitivity (0.831 kPa⁻¹, <0.5 kPa), a lower detection limit, good stability and durability. The enhanced sensing mechanism about the conductive filler content and the patterned microstructures has also been discussed. A 5×5 sensor array was then fabricated to be used as flexible and transparent wearable touch keyboards systems. The fabricated pressure sensor has great potential in the future electronic skin area.

Translated title of the contribution	基于银纳米线/PDMS微结构复合电介质的柔性透明电容式压力传感器及其在穿戴式触摸键盘的应用
Original language	English
Pages (from-to)	1587-1595
Number of pages	9
Journal	Science China Materials
Volume	61
Issue number	12
DOIs	https://doi.org/10.1007/s40843-018-9267-3
Publication status	Published - 1 Dec 2018
Externally published	Yes

Keywords

capacitive pressure sensor
e-skin
flexible
silver nanowires
transparent
wearable electronics

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10.1007/s40843-018-9267-3

Cite this

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abstract = "The development of pressure sensors with highly sensitivity, fast response and facile fabrication technique is desirable for wearable electronics. Here, we successfully fabricated a flexible transparent capacitive pressure sensor based on patterned microstructured silver nanowires (AgNWs)/polydimethylsiloxane (PDMS) composite dielectrics. Compared with the pure PDMS dielectric layer with planar structures, the patterned microstructured sensor exhibits a higher sensitivity (0.831 kPa−1, <0.5 kPa), a lower detection limit, good stability and durability. The enhanced sensing mechanism about the conductive filler content and the patterned microstructures has also been discussed. A 5×5 sensor array was then fabricated to be used as flexible and transparent wearable touch keyboards systems. The fabricated pressure sensor has great potential in the future electronic skin area.",

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AU - Shen, Guozhen

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AB - The development of pressure sensors with highly sensitivity, fast response and facile fabrication technique is desirable for wearable electronics. Here, we successfully fabricated a flexible transparent capacitive pressure sensor based on patterned microstructured silver nanowires (AgNWs)/polydimethylsiloxane (PDMS) composite dielectrics. Compared with the pure PDMS dielectric layer with planar structures, the patterned microstructured sensor exhibits a higher sensitivity (0.831 kPa−1, <0.5 kPa), a lower detection limit, good stability and durability. The enhanced sensing mechanism about the conductive filler content and the patterned microstructures has also been discussed. A 5×5 sensor array was then fabricated to be used as flexible and transparent wearable touch keyboards systems. The fabricated pressure sensor has great potential in the future electronic skin area.

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Flexible and transparent capacitive pressure sensor with patterned microstructured composite rubber dielectric for wearable touch keyboard application

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Keywords

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