Volume 17, Issue 40 2102825
Research Article

Integrated, Highly Flexible, and Tailorable Thermoelectric Type Temperature Detectors Based on a Continuous Carbon Nanotube Fiber

Xiaogang Xia

Xiaogang Xia

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China

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Qiang Zhang

Qiang Zhang

Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, Aalto, FI-00076 Finland

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Wenbin Zhou

Wenbin Zhou

Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124 China

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Jie Mei

Jie Mei

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China

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Zhuojian Xiao

Zhuojian Xiao

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China

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Wei Xi

Wei Xi

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China

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Yanchun Wang

Yanchun Wang

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

Beijing Key Laboratory for Advanced Functional Materials and Structure Research, Beijing, 100190 China

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Sishen Xie

Corresponding Author

Sishen Xie

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China

Beijing Key Laboratory for Advanced Functional Materials and Structure Research, Beijing, 100190 China

Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808 China

E-mail: [email protected], [email protected]

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Weiya Zhou

Corresponding Author

Weiya Zhou

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China

Beijing Key Laboratory for Advanced Functional Materials and Structure Research, Beijing, 100190 China

Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808 China

E-mail: [email protected], [email protected]

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First published: 09 September 2021
Citations: 14

Abstract

As possible alternatives to traditional thermoelectric (TE) materials, carbon nanomaterials and their hybrid materials have great potential in the future application of flexible and lightweight temperature detection. In this work, an integrated, highly flexible, and tailorable TE temperature detector with high performance has been fabricated based on a continuous single-walled carbon nanotube (SWCNT) fiber. The detector consists of more than one pairs of thermocouples composed of p-type SWCNT fiber and n-type SWCNT hybrid fiber in situ doped by polyethylenimine. Due to the node contact mechanism of the detection, the sensitivity of the detector can be improved with the increase of the number of p–n thermocouples, independent of the length of the thermocouple. The temperature detection process of the detector has been studied in detail. In particular, the integrated and flexible detector can be divided into several sub-detectors easily by cutting, illustrating the prospect of large-scale preparation of this kind of novel temperature detectors. Its high flexibility ensures the detector to maintain excellent detection performance after 15 000 bending circles. Furthermore, the as-designed TE type temperature detector demonstrates a great application promise for real-time temperature detection and temperature change sensing even in complex surface and harsh environment.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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