MXene-Deposited Melamine Foam-Based Iontronic Pressure Sensors for Wearable Electronics and Smart Numpads

Date

2024-01-01

Author

Çetin, Kemal Önder
Çiçek, Melih Ögeday
Cugunlular, Murathan
Bolukbasi, Tufan
Khan, Yaqoob
Ünalan, Hüsnü Emrah

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Iontronic pressure sensors hold significant potential to emerge as vital components in the field of flexible and wearable electronics, addressing a variety of applications spanning wearable technology, health monitoring systems, and human-machine interactions. This study introduces a novel iontronic pressure sensor structure based on a seamlessly deposited Ti3C2Tx MXene layer onto highly porous melamine foam as parallel plate electrodes and an ionically conductive electrolyte of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide/thermoplastic polyurethane coupled with carbon cloth as current collecting layers for improved sensitivity and high mechanical stability of more than 7000 cycles. MXene-deposited melamine foam-based iontronic pressure sensors (MIPS) showed a high sensitivity of 5.067 kPa−1 in the range of 45–60 kPa and a fast response/recovery time of 28/18 ms, respectively. The high sensitivity, high mechanical stability, and fast response/recovery time of the designed sensor make them highly promising candidates for real-time body motion monitoring. Moreover, sensors are employed as a smart numpad for integration into advanced ATM security systems utilizing machine learning algorithms. This research marks a significant advance in iontronic pressure sensor technology, offering promising avenues for application in wearable electronics and security systems.

Subject Keywords

EMIM-TFSI, human-machine interface, iontronic pressure sensors, machine learning, Ti3C2 MXene, wearable electronics

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85199990782&origin=inward
https://hdl.handle.net/11511/110708

Collections

Department of Civil Engineering, Article