Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection

In this work, we present a novel stretchable bimodal sensor that can simultaneously detect temperature and humidity changes based on poly-hydroxyethyl acrylate (PHEA) elastomer infused with 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF4) ionic liquid. The sensor exhibits high transparency,...

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Main Authors: Tongfeng Xian, Xin Xu, Weilin Liu, Jun Ding
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Heliyon
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844024019054
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author Tongfeng Xian
Xin Xu
Weilin Liu
Jun Ding
author_facet Tongfeng Xian
Xin Xu
Weilin Liu
Jun Ding
author_sort Tongfeng Xian
collection DOAJ
description In this work, we present a novel stretchable bimodal sensor that can simultaneously detect temperature and humidity changes based on poly-hydroxyethyl acrylate (PHEA) elastomer infused with 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF4) ionic liquid. The sensor exhibits high transparency, stability, and biocompatibility, as well as excellent mechanical and sensing properties. The sensor can achieve a maximum strain of 761%, a sensitivity of 4.5%/°C at room temperature, a detection range from −35 to 120 °C, and a response time of 10 ms. The sensor is able to provide acute response to movement of human hand at close range and can detect temperature changes as small as 0.004 °C in the range of 20–30 °C. The sensor also responds to humidity change, showing a high sensitivity to humidity change of 4.4%/RH% under the temperature of 30 °C. The sensor can be used for various applications in wearable electronics, human-machine interfaces, and soft robotics.
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spelling doaj.art-8f34624fab6e4a07a74e498ee38fc0682024-03-09T09:26:25ZengElsevierHeliyon2405-84402024-02-01104e25874Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detectionTongfeng Xian0Xin Xu1Weilin Liu2Jun Ding3Department of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, #03-09 EA, 117575, SingaporeDepartment of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, #03-09 EA, 117575, SingaporeDepartment of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, #03-09 EA, 117575, SingaporeCorresponding author.; Department of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, #03-09 EA, 117575, SingaporeIn this work, we present a novel stretchable bimodal sensor that can simultaneously detect temperature and humidity changes based on poly-hydroxyethyl acrylate (PHEA) elastomer infused with 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF4) ionic liquid. The sensor exhibits high transparency, stability, and biocompatibility, as well as excellent mechanical and sensing properties. The sensor can achieve a maximum strain of 761%, a sensitivity of 4.5%/°C at room temperature, a detection range from −35 to 120 °C, and a response time of 10 ms. The sensor is able to provide acute response to movement of human hand at close range and can detect temperature changes as small as 0.004 °C in the range of 20–30 °C. The sensor also responds to humidity change, showing a high sensitivity to humidity change of 4.4%/RH% under the temperature of 30 °C. The sensor can be used for various applications in wearable electronics, human-machine interfaces, and soft robotics.http://www.sciencedirect.com/science/article/pii/S2405844024019054
spellingShingle Tongfeng Xian
Xin Xu
Weilin Liu
Jun Ding
Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
Heliyon
title Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
title_full Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
title_fullStr Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
title_full_unstemmed Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
title_short Ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
title_sort ultrasensitive stretchable bimodal sensor based on novel elastomer and ionic liquid for temperature and humidity detection
url http://www.sciencedirect.com/science/article/pii/S2405844024019054
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AT xinxu ultrasensitivestretchablebimodalsensorbasedonnovelelastomerandionicliquidfortemperatureandhumiditydetection
AT weilinliu ultrasensitivestretchablebimodalsensorbasedonnovelelastomerandionicliquidfortemperatureandhumiditydetection
AT junding ultrasensitivestretchablebimodalsensorbasedonnovelelastomerandionicliquidfortemperatureandhumiditydetection