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Highly Sensitive Iontronic Pressure Sensor with Side-by-Side Package Based on Alveoli and Arch Structure.
Ding, Zhi; Li, Weijian; Wang, Weidong; Zhao, Zhengqian; Zhu, Ye; Hou, Baoyin; Zhu, Lijie; Chen, Ming; Che, Lufeng.
Afiliación
  • Ding Z; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Li W; Center for Microelectronics, Shaoxing Institute, Zhejiang University, Shaoxing, 312035, China.
  • Wang W; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Zhao Z; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Zhu Y; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Hou B; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Zhu L; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Chen M; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
  • Che L; College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
Adv Sci (Weinh) ; 11(24): e2309407, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38491739
ABSTRACT
Flexible pressure sensors play a significant role in wearable devices and electronic skin. Iontronic pressure sensors with high sensitivity, wide measurement range, and high resolution can meet requirements. Based on the significant deformation characteristics of alveoli to improve compressibility, and the ability of the arch to disperse vertical pressure into horizontal thrust to increase contact area, a graded hollow ball arch (GHBA) microstructure is proposed, greatly improving sensitivity. The fabrication of GHBA ingeniously employs a double-sided structure. One side uses mold casting to create convex structures, while the other utilizes the evaporation of moisture during the curing process to form concave structures. At the same time, a novel side-by-side package structure is proposed, ensuring pressure on flexible substrate is maximally transferred to the GHBA microstructure. Within the range of 0.2 Pa-300 kPa, the iontronic pressure sensor achieves a maximum sensitivity of 10 420.8 kPa-1, pressure resolution of 0.1% under the pressure of 100 kPa, and rapid response/recovery time of 40/35 ms. In wearable devices, it is capable of monitoring dumbbell curl exercises and wirelessly correcting sitting positions. In electronic skin, it can non-contactly detect the location of the wind source and achieve object classification prediction when combined with the CNN model.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania