Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 33, Issue 19, Pages 15563-15573Publisher
SPRINGER
DOI: 10.1007/s10854-022-08462-9
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Funding
- Foundation of the Science and Technology Program of Hainan Province [ZDYF2020230]
- Foundation of Guangdong Provincial Key Laboratory of Natural Rubber Processing [2019B121203004]
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This study presents a facile and low-cost method to fabricate highly sensitive strain sensors based on a composite of natural rubber foam and Ti3C2Tx nanosheets (MXene/NR) using the dip-coating technique. The fabricated MXene/NR composite exhibits excellent sensitivity and a large working strain range, making it a promising candidate for wearable electronics.
Sensors, as one of the crucial components of wearable electronics, have attracted much attention due to their extensive application in healthcare, human-machine interfaces, electronic skins (E-skins), rehabilitation, and internet of things. However, there is still a challenge to fabricate flexible strain sensors with both good sensitivity and large working strain range. Herein, a facile, scalable, and low-cost strategy is developed to prepare highly sensitive strain sensors based on natural rubber foam and Ti3C2Tx nanosheeets (MXene/NR) by dip-coating method. The fabricated MXene/NR composite exhibits excellent strain sensitivity and large strain range. The gage factor of the MXene/NR composite reaches 14 in the strain range of 0-5% with a low pressure limitation of detection (435 Pa). Additionally, the sensing range is as large as 0-80% of strain and shows good stability during the pressing and relaxing cycles. It is demonstrated that the MXene/NR composite could be used to detect motions, such as finger pressing and step monitoring, suggesting it is a promising candidate for fabricating wearable electronics.
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