Dual-mode thermoelectric-thermochromic fiber with manipulated PEDOT:PSS-coated Te nanowires for early fire detection
- 1State Key Laboratory of New Textile Materials and Advanced Processing, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
- 2College of Biological and Chemical Engineering, Guangxi University of Science & Technology, Liuzhou 545006, China
- 3Centre for Future Materials, School of Science, Engineering and Digital Technologies, University of Southern Queensland, Springfield Central 4300, Australia
Abstract
Reliable and flexible early fire warning sensors play a crucial role in fire detection, yet remain a major challenge. Herein, we combined poly (p-phenylene benzobisoxazole) (PBO) nanofibers with thermoelectric and thermochromic (PTT) nano-functional particles to construct a dual-mode early fire warning sensing fiber, which realizes accurate temperature detection through visual and digital signal cooperative sensing. The resulting core-sheath structured nanoscale PTT sensing fiber features PBO nanofibers as sheath, with perovskite crystals assembled on the outermost layer, while the core is composed of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)@tellurium nanowires (Te NWs)/polyurethane composite thermoelectric nanomaterial. Incorporating PEDOT:PSS@Te NWs into the core facilitates a millisecond-level response to fire (threshold voltage: 1.0 mV, response time: ≤ 0.9 s) and wide temperature range (50–300 °C) fire warning performance. This rapid response is attributed to the optimization of the Te NWs nanointerface heterojunction structure, as well as the formation of a nanowire permeable conductive network, which synergistically enhances the Seebeck coefficient and conductivity ( S = 46.5 μV K − 1 , σ = 2.05 × 10 4 S m − 1 ). Moreover, the sensing fiber has achieved an independent power-free visual warning capability by utilizing colorimetric monitors and the thermochromic properties of perovskite crystals over a wide temperature range of 100–300 °C. This work offers a novel approach to develop a reliable real-time monitoring strategy with an impressive temperature sensing accuracy of up to 97.25% to early fire warning detection in precombustion.
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BibTeX
@article{xu2026dualmode,
title = {{Dual-mode thermoelectric-thermochromic fiber with manipulated PEDOT:PSS-coated Te nanowires for early fire detection}},
author = {Jie Xu and Xiaoqian Li and Xingyu He and Yudong Wang and Xiaoke Li and Jianan Jiang and Zhaoyun Liu and Min Hong and Hualing He and Zhicai Yu and Siqi Huo},
journal = {Journal of Material Science and Technology},
year = {2026},
month = jun,
doi = {10.1016/j.jmst.2026.05.053},
url = {https://doi.org/10.1016/j.jmst.2026.05.053},
note = {CC BY},
}
RIS
TY - JOUR
TI - Dual-mode thermoelectric-thermochromic fiber with manipulated PEDOT:PSS-coated Te nanowires for early fire detection
AU - Jie Xu
AU - Xiaoqian Li
AU - Xingyu He
AU - Yudong Wang
AU - Xiaoke Li
AU - Jianan Jiang
AU - Zhaoyun Liu
AU - Min Hong
AU - Hualing He
AU - Zhicai Yu
AU - Siqi Huo
PY - 2026
DA - 2026/06/02
JO - Journal of Material Science and Technology
DO - 10.1016/j.jmst.2026.05.053
UR - https://doi.org/10.1016/j.jmst.2026.05.053
AB - Reliable and flexible early fire warning sensors play a crucial role in fire detection, yet remain a major challenge. Herein, we combined poly (p-phenylene benzobisoxazole) (PBO) nanofibers with thermoelectric and thermochromic (PTT) nano-functional particles to construct a dual-mode early fire warning sensing fiber, which realizes accurate temperature detection through visual and digital signal cooperative sensing. The resulting core-sheath structured nanoscale PTT sensing fiber features PBO nanofibers as sheath, with perovskite crystals assembled on the outermost layer, while the core is composed of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)@tellurium nanowires (Te NWs)/polyurethane composite thermoelectric nanomaterial. Incorporating PEDOT:PSS@Te NWs into the core facilitates a millisecond-level response to fire (threshold voltage: 1.0 mV, response time: ≤ 0.9 s) and wide temperature range (50–300 °C) fire warning performance. This rapid response is attributed to the optimization of the Te NWs nanointerface heterojunction structure, as well as the formation of a nanowire permeable conductive network, which synergistically enhances the Seebeck coefficient and conductivity ( S = 46.5 μV K − 1 , σ = 2.05 × 10 4 S m − 1 ). Moreover, the sensing fiber has achieved an independent power-free visual warning capability by utilizing colorimetric monitors and the thermochromic properties of perovskite crystals over a wide temperature range of 100–300 °C. This work offers a novel approach to develop a reliable real-time monitoring strategy with an impressive temperature sensing accuracy of up to 97.25% to early fire warning detection in precombustion.
SN - 1005-0302
SN - 1941-1162
ER -