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/lp/rsc/flexible-hemispheric-microarrays-of-highly-pressure-sensitive-sensors-7jNhC5WOR5
- Publisher
- Royal Society of Chemistry
- Copyright
- This journal is © The Royal Society of Chemistry
- ISSN
- 2040-3364
- DOI
- 10.1039/c8nr01495g
- pmid
- 29845159
- Publisher site
- See Article on Publisher Site
Abstract
Recently, flexible pressure sensors featuring high sensitivity, broad sensing range and real-time detection have aroused great attention owing to their crucial role in the development of artificial intelligent devices and healthcare systems. Herein, highly sensitive pressure sensors based on hemisphere-microarray flexible substrates are fabricated via inversely templating honeycomb structures deriving from a facile and static breath figure process. The interlocked and subtle microstructures greatly improve the sensing characteristics and compressibility of the as-prepared pressure sensor, endowing it a sensitivity as high as 196 kPa1 and a wide pressure sensing range (0100 kPa), as well as other superior performance, including a lower detection limit of 0.5 Pa, fast response time (<26 ms) and high reversibility (>10000 cycles). Based on the outstanding sensing performance, the potential capability of our pressure sensor in capturing physiological information and recognizing speech signals has been demonstrated, indicating promising application in wearable and intelligent electronics.
Journal
Nanoscale – Royal Society of Chemistry
Published: May 30, 2018