中文版 | English
Title

High-Porosity Foam-Based Iontronic Pressure Sensor with Superhigh Sensitivity of 9280 kPa(-1)

Author
Corresponding AuthorLiu, Zhiguang; Wang, Quan; Guo, Chuan Fei
Publication Years
2022-12-01
DOI
Source Title
ISSN
2311-6706
EISSN
2150-5551
Volume14Issue:1
Abstract
Flexible pressure sensors with high sensitivity are desired in the fields of electronic skins, human-machine interfaces, and health monitoring. Employing ionic soft materials with microstructured architectures in the functional layer is an effective way that can enhance the amplitude of capacitance signal due to generated electron double layer and thus improve the sensitivity of capacitive-type pressure sensors. However, the requirement of specific apparatus and the complex fabrication process to build such microstructures lead to high cost and low productivity. Here, we report a simple strategy that uses open-cell polyurethane foams with high porosity as a continuous three-dimensional network skeleton to load with ionic liquid in a one-step soak process, serving as the ionic layer in iontronic pressure sensors. The high porosity (95.4%) of PU-IL composite foam shows a pretty low Young's modulus of 3.4 kPa and good compressibility. A superhigh maximum sensitivity of 9,280 kPa(-1) in the pressure regime and a high pressure resolution of 0.125% are observed in this foam-based pressure sensor. The device also exhibits remarkable mechanical stability over 5,000 compression-release or bending-release cycles. Such high porosity of composite structure provides a simple, cost-effective and scalable way to fabricate super sensitive pressure sensor, which has prominent capability in applications of water wave detection, underwater vibration sensing, and mechanical fault monitoring.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[51903118,"U1613204"] ; Science Technology the Shenzhen Sci-Tech Fund[KYTDPT20181011104007] ; College Student's Innovation and Entrepreneurship Program[2018X33] ; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587] ; Science Technology and Innovation Committee of Shenzhen Municipality[JCYJ20170817111714314]
WOS Research Area
Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject
Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS Accession No
WOS:000728578300001
Publisher
ESI Research Field
MATERIALS SCIENCE
Scopus EID
2-s2.0-85120938245
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttps://kc.sustech.edu.cn/handle/2SGJ60CL/258543
DepartmentDepartment of Materials Science and Engineering
工学院_力学与航空航天工程系
Affiliation
1.Harbin Inst Technol, Sch Astronaut, Harbin 150001, Heilongjiang, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Shantou Univ, Dept Civil & Environm Engn, Shantou 515063, Guangdong, Peoples R China
5.MIT, Dept Mech Engn, Cambridge, MA 02139 USA
6.Univ Houston, Dept Phys, Houston, TX 77204 USA
7.Univ Houston, TcSUH, Houston, TX 77204 USA
8.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China
9.320 Crescent Village Circle,Unit 1413, San Jose, CA 95134 USA
First Author AffilicationDepartment of Materials Science and Engineering;  Department of Mechanics and Aerospace Engineering;  Southern University of Science and Technology
Corresponding Author AffilicationDepartment of Materials Science and Engineering;  Department of Mechanics and Aerospace Engineering;  Southern University of Science and Technology
Recommended Citation
GB/T 7714
Liu, Qingxian,Liu, Yuan,Shi, Junli,et al. High-Porosity Foam-Based Iontronic Pressure Sensor with Superhigh Sensitivity of 9280 kPa(-1)[J]. NANO-MICRO LETTERS,2022,14(1).
APA
Liu, Qingxian,Liu, Yuan,Shi, Junli,Liu, Zhiguang,Wang, Quan,&Guo, Chuan Fei.(2022).High-Porosity Foam-Based Iontronic Pressure Sensor with Superhigh Sensitivity of 9280 kPa(-1).NANO-MICRO LETTERS,14(1).
MLA
Liu, Qingxian,et al."High-Porosity Foam-Based Iontronic Pressure Sensor with Superhigh Sensitivity of 9280 kPa(-1)".NANO-MICRO LETTERS 14.1(2022).
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