Ultra-sensitive pressure sensors based on large alveolar deep tooth electrode structures with greatly stretchable oriented fiber membrane

Yue, Quan; Xiao, Songhua; Li, Zhibin; Yang, Jing; Chen, Bin; Feng, Jiansong; Zhang, Xu; Chen, Qianling; Wang, Taihong

2022-09-01

10.1016/j.cej.2022.136370

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Electrohydrodynamic (EHD) preparation of micro-nano fibers has significant advantages in the application of ultra-sensitive detection. However, far-field EHD always has the problem of jet instability, which limits its further application. In this study, we excellently realize the generated single jet deposition of aligned fibers by constructing auxiliary electric fields and creatively designed an ultra-sensitive structure based on large alveolar deep tooth electrodes with oriented TPU fiber membrane. As the isolation layer, the oriented fiber membrane controls the formation of the electric double layers by adjusting the contact area between the tooth-shaped electrodes and the polyelectrolyte membrane. Meanwhile, with increasing the pressure, the tooth-shaped electrodes with large alveolar depth bring more sidewall surfaces contact and expand the capacitance adjustment range. Therefore, we can continuously adjust the capacitance of the pressure sensor through the oriented fiber membrane to achieve an ultra-broad linear range (1.1-100 kPa) with ultra-high sensitivity of 230 kPa(-1).

Far-field EHD Oriented fiber membrane Electric double layer Ultra-sensitivity Capacitive pressure sensors

SCI ; EI

英语

第一 ; 通讯

Guangdong Major Scientific Research Project[2018KZDXM061]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000800010100003

ELSEVIER SCIENCE SA

20222912367744

Capacitance ; Capacitive sensors ; Electrochemistry ; Electrodes ; Fibers ; Membranes ; Nanofibers ; Polyelectrolytes ; Pressure sensors

Electricity: Basic Concepts and Phenomena:701.1 ; Control Devices:732 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Solid State Physics:933 ; Pressure Measuring Instruments:944.3 ; Materials Science:951

ENGINEERING

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China

Yue, Quan,Xiao, Songhua,Li, Zhibin,et al. Ultra-sensitive pressure sensors based on large alveolar deep tooth electrode structures with greatly stretchable oriented fiber membrane[J]. CHEMICAL ENGINEERING JOURNAL,2022,443.

Yue, Quan.,Xiao, Songhua.,Li, Zhibin.,Yang, Jing.,Chen, Bin.,...&Wang, Taihong.(2022).Ultra-sensitive pressure sensors based on large alveolar deep tooth electrode structures with greatly stretchable oriented fiber membrane.CHEMICAL ENGINEERING JOURNAL,443.

Yue, Quan,et al."Ultra-sensitive pressure sensors based on large alveolar deep tooth electrode structures with greatly stretchable oriented fiber membrane".CHEMICAL ENGINEERING JOURNAL 443(2022).