Sign-Switchable Poisson's Ratio Design for Bimodal Strain-to-Electrical Signal Transducing Device

Sign-Switchable Poisson's Ratio Design for Bimodal Strain-to-Electrical Signal Transducing Device

© 2024 Wiley‐VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 37(2025), 5 vom: 03. Feb., Seite e2413774
Auteur principal: Jing, Houchao (Auteur)
Autres auteurs: Dan, Junyan, Wei, Hua, Guo, Tongkun, Xu, Zhijun, Jiang, Ying, Liu, Yaqing
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article Young's modulus‐tunable material bimodal transducing device flexible electronics phase‐change gel sign‐switchable Poisson's ratio
Description
Résumé:© 2024 Wiley‐VCH GmbH.
Stretchable electronic devices that conduct strain-related electronic performances have drawn extensive attention, functioning as mechanical sensors, actuators, and stretchable conductors. Although strain-insensitive or strain-responsive nature is well-achieved separately, it remains challenging to combine these two characteristics in one single device, which will offer versatile adaptability in various working situations. Herein, a hybrid material with sign-switchable Poisson's ratio (SSPR) is developed by combining a phase-change gel based reentrantreentrant honeycomb pattern and a polydimethylsiloxane film. The phase-change gel featuring thermally-regulated Young's modulus enables the hybrid material to switch between negative and positive Poisson's ratios. After integrating with a pre-stretched silver nanowires film, the obtained stretchable device performs bimodal strain-to-electrical signal transducing (Bi-SET) functions, in which the SSPR-dominated strain-resistance response switches between strain-dependent and strain-insensitive behaviors. As a proof of concept, a mode-switchable grasping system is constructed using a Bi-SET device-based controller, enabling the adaptation of grasping behaviors to various target objects
Description:Date Revised 05.02.2025
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202413774