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Rapid-Response and Highly Sensitive Piezocapacitive Pressure Sensor Based on Micro Buckling Periodic Layers for Wearable Applications AITranslate

Dawei Du; Pan Yang; Le Zhao; Wenxing An; Zilan Wang; Shihui Yu
Tianjin University; Luoyang Institute of Science and Technology; Luoyang Institute of Science and Technology; Tianjin University; Dalian University of Technology; Tianjin University
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Publisher: ACS
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Abstract AITranslate

Flexible piezocapacitive pressure sensors are prospective candidates for crucial sensing components in wearable human health applications. Despite the low-cost manufacturing of piezocapacitive sensors, high sensitivity and fast response remain tough issues. Herein, a rapid-response and highly sensitive piezocapacitive pressure sensor is developed through a low-cost and scalable solution approach. The sensor is constructed from a silver nanowires (AgNWs)-coated wrinkled polydimethylsiloxane (PDMS) electrode and a pyramid PDMS dielectric layer coated with AgNWs on the flat side. The fabricated sensor exhibits a high sensitivity of 7.88 kPa–1, a rapid response time (10 ms), a fast recovery time (20 ms), and excellent cycling stability (more than 5000 cycles). The sensor has been successfully applied to detecting the touching behavior and joint motion. The monitoring of wrist pulse and fingertip pulse waveforms further shows great potential in human health monitoring and wearable intelligent health systems.

KeyWords AITranslate

flexible pressure sensor micro periodic pattern piezocapacitive sensor silver nanowire human health monitoring
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Basic Information:

DOI：https://doi.org/10.1021/acsaelm.3c01097

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Citation Information:

Flexible piezocapacitive pressure sensors are prospective candidates for crucial sensing components in wearable human health applications. Despite the low-cost manufacturing of piezocapacitive sensors, high sensitivity and fast response remain tough issues. Herein, a rapid-response and highly sensitive piezocapacitive pressure sensor is developed through a low-cost and scalable solution approach. The sensor is constructed from a silver nanowires (AgNWs)-coated wrinkled polydimethylsiloxane (PDMS) electrode and a pyramid PDMS dielectric layer coated with AgNWs on the flat side. The fabricated sensor exhibits a high sensitivity of 7.88 kPa–1, a rapid response time (10 ms), a fast recovery time (20 ms), and excellent cycling stability (more than 5000 cycles). The sensor has been successfully applied to detecting the touching behavior and joint motion. The monitoring of wrist pulse and fingertip pulse waveforms further shows great potential in human health monitoring and wearable intelligent health systems.

quote

GB/T 7714-2015 [1] Dawei Du, Pan Yang, Le Zhao, et al. ACS Applied Electronic Materials, 2023(5). DOI:10.1021/acsaelm.3c01097.
MLA [1] Dawei Du, et al., ACS Applied Electronic Materials, no. 5, 2023, https://doi.org/10.1021/acsaelm.3c01097.
APA [1] Dawei Du, Pan Yang, Le Zhao, Wenxing An, Zilan Wang, & Shihui Yu. (2023). ACS Applied Electronic Materials(5). https://doi.org/10.1021/acsaelm.3c01097
IEEE [1] Dawei Du, Pan Yang, Le Zhao, Wenxing An, Zilan Wang, and Shihui Yu, ACS Applied Electronic Materials, no. 5, 2023, doi: 10.1021/acsaelm.3c01097. keywords: {flexible pressure sensor micro periodic pattern piezocapacitive sensor silver nanowire human health monitoring}