Silver nanowire-embedded PDMS with a multiscale structure for a highly sensitive and robust flexible pressure sensor

Nanoscale
Yunsik JooYongtaek Hong

Abstract

The development of highly sensitive pressure sensors with a low-cost and facile fabrication technique is desirable for electronic skins and wearable sensing devices. Here a low-cost and facile fabrication strategy to obtain multiscale-structured elastomeric electrodes and a highly sensitive and robust flexible pressure sensor is presented. The principles of spontaneous buckle formation of the PDMS surface and the embedding of silver nanowires are used to fabricate the multiscale-structured elastomeric electrode. By laminating the multiscale-structured elastomeric electrode onto the dielectric layer/bottom electrode template, the pressure sensor can be obtained. The pressure sensor is based on the capacitive sensing mechanism and shows high sensitivity (>3.8 kPa(-1)), fast response and relaxation time (<150 ms), high bending stability and high cycle stability. The fabrication process can be easily scaled up to produce pressure sensor arrays and they can detect the spatial distribution of the applied pressure. It is also demonstrated that the fingertip pressure sensing device can sense the pressure distribution of each finger, when grabbing an object.

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Citations

Feb 3, 2016·Advanced Materials·Minhoon ParkJong-Hyun Ahn
Dec 18, 2015·Advanced Materials·Bowen ZhuXiaodong Chen
Apr 28, 2016·ACS Applied Materials & Interfaces·Segeun JangMansoo Choi
Jul 21, 2016·Lab on a Chip·Joo Chuan YeoChwee Teck Lim
Aug 4, 2018·Advanced Materials·Chunfeng WangSheng Xu
Aug 25, 2016·Nature Communications·Yang GaoLi Tan
Dec 2, 2017·Advanced Healthcare Materials·Shanshan YaoYong Zhu
Apr 8, 2020·Advanced Materials·Min-Ho SeoJun-Bo Yoon
Jul 31, 2020·Advanced Healthcare Materials·Qiupeng LinChuan Fei Guo
Nov 11, 2017·Sensors·Ahmed Salim, Sungjoon Lim
Jun 15, 2019·Nature Communications·Kyun Kyu KimSeung Hwan Ko
Aug 11, 2019·Materials·Hiesang SohnMi-Jeong Kim
Apr 5, 2020·Micromachines·Almudena Rivadeneyra, Juan Antonio López-Villanueva
Apr 7, 2019·Nanoscale Research Letters·Sai LiuJinwei Gao
Mar 3, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Congyi WuDawen Zeng
Sep 29, 2017·Nanoscale·Naveen TiwariNripan Mathews
Jul 26, 2018·Sensors·Xiaofeng YangXinlin Qing

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