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Fast response flexible humidity sensors based on Ti3C2Tx MXene-heterostructures for multifunctional applications.
- Source :
- Journal of Materials Chemistry C; 4/7/2024, Vol. 12 Issue 13, p4809-4816, 8p
- Publication Year :
- 2024
-
Abstract
- High-performance humidity sensors with fast response and recovery capabilities are still a significant requirement in wearable digital healthcare applications. Herein, multifunctional humidity sensors based on heterostructured Ti<subscript>3</subscript>C<subscript>2</subscript>T<subscript>x</subscript> MXenes have been designed, and are endowed with greatly improved sensing performance compared with the Ti<subscript>3</subscript>C<subscript>2</subscript>T<subscript>x</subscript> sensors. The Ti<subscript>3</subscript>C<subscript>2</subscript>T<subscript>x</subscript>/SnO<subscript>2</subscript> sensor displays a high response of 13.4 and rapid response time (2 s) to 59% relative humidity (RH), good repeatability, a wide detection range for 11–97% RH, and high selectivity to water. Complex impedance spectroscopy and the synergistic effects of heterojunctions are employed to explain the mechanisms of the enhanced sensing performance of the Ti<subscript>3</subscript>C<subscript>2</subscript>T<subscript>x</subscript>/SnO<subscript>2</subscript> sensors. Such exceptional performance makes this Ti<subscript>3</subscript>C<subscript>2</subscript>T<subscript>x</subscript>/SnO<subscript>2</subscript>-based humidity sensor much more applicable for applications of real-time respiratory monitoring and non-contact measurements. This work provides effective strategies for humidity sensors for collecting biomedical signals and realizing non-contact human–machine interaction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507526
- Volume :
- 12
- Issue :
- 13
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry C
- Publication Type :
- Academic Journal
- Accession number :
- 176297993
- Full Text :
- https://doi.org/10.1039/d4tc00111g