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Flexible temperature-pressure dual sensor based on 3D spiral thermoelectric Bi2Te3 films.
Yu, Hailong; Hu, Zhenqing; He, Juan; Ran, Yijun; Zhao, Yang; Yu, Zhi; Tai, Kaiping.
Afiliación
  • Yu H; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China.
  • Hu Z; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
  • He J; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China.
  • Ran Y; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
  • Zhao Y; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China.
  • Yu Z; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
  • Tai K; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China.
Nat Commun ; 15(1): 2521, 2024 Mar 21.
Article en En | MEDLINE | ID: mdl-38514626
ABSTRACT
Dual-parameter pressure-temperature sensors are widely employed in personal health monitoring and robots to detect external signals. Herein, we develop a flexible composite dual-parameter pressure-temperature sensor based on three-dimensional (3D) spiral thermoelectric Bi2Te3 films. The film has a (000l) texture and good flexibility, exhibiting a maximum Seebeck coefficient of -181 µV K-1 and piezoresistance gauge factor of approximately -9.2. The device demonstrates a record-high temperature-sensing performance with a high sensing sensitivity (-426.4 µV K-1) and rapid response time (~0.95 s), which are better than those observed in most previous studies. In addition, owing to the piezoresistive effect in the Bi2Te3 film, the 3D-spiral deviceexhibits significant pressure-response properties with a pressure-sensing sensitivity of 120 Pa-1. This innovative approach achieves high-performance dual-parameter sensing using one kind of material with high flexibility, providing insight into the design and fabrication of many applications, such as e-skin.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido