Strain-Discriminable Pressure/Proximity Sensing of Transparent Stretchable Electronic Skin Based on PEDOT:PSS/SWCNT Electrodes

Pressure/proximity sensing as the essential function of electronic skin (e-skin) has become an emerging technological goal for new-generation electronic devices in a wide variety of application fields, for example, smart electronics, human–machine interaction, and prosthetics. However, the current r...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2020-12, Vol.12 (49), p.55083-55093
Main Authors: Zhao, Pengfei, Zhang, Ruimin, Tong, Yanhong, Zhao, Xiaoli, Zhang, Tao, Tang, Qingxin, Liu, Yichun
Format: Article
Language:English
Subjects:
Discriminant Analysis
Electric Conductivity
Electrodes
Electronics
Equipment Design
Humans
Nanotubes, Carbon - chemistry
Organic Electronic Devices
Polystyrenes - chemistry
Pressure
Thiophenes - chemistry
Wearable Electronic Devices
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Summary:Pressure/proximity sensing as the essential function of electronic skin (e-skin) has become an emerging technological goal for new-generation electronic devices in a wide variety of application fields, for example, smart electronics, human–machine interaction, and prosthetics. However, the current research lacks pressure/proximity detection of the stretched e-skin, which ignores the key elastic characteristic of skin and hinders the development of e-skin. Here, the pressure/proximity detection of the transparent e-skin in the stretching state is demonstrated based on poly­(3,4-ethylenedioxythiophene): poly­(styrenesulfonate) (PEDOT:PSS)/single-walled carbon nanotube (SWCNT). The high transparency of the e-skin realizes the visual imperception for wearable electronic systems. The perfect combination of stretchable SWCNT and highly conductive PEDOT:PSS endows the sensors with high stretchability and high discrimination capability toward strain, providing an effective way to overcome the interference of strain to realize accurate pressure/proximity detection of stretched e-skin at different strains.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.0c16546