Soft pressure sensors drift under prolonged high stress because of the creep of soft materials, which causes inaccurate measurements. Now, through molecular-level design, a leakage-free and creep-free polyelectrolyte elastomer is synthesized, and an iontronic sensor using the polyelectrolyte elastomer shows very low signal drift under a high static pressure.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
Chortos, A., Liu, J. & Bao, Z. Pursuing prosthetic electronic skin. Nat. Mater. 15, 937–950 (2016). A review article that presents materials and skin-like flexible sensors for various applications.
Yang, C. & Suo, Z. Hydrogel ionotronics. Nat. Rev. Mater. 3, 125–142 (2018). A review article that presents the mechanism of the electric double layer in stretchable iontronic devices.
Kim, H. J., Chen, B., Suo, Z. & Hayward, R. C. Ionoelastomer junctions between polymer networks of fixed anions and cations. Science 367, 773–776 (2020). This paper reports ionoelastomers with ionic species grafted to the polymer networks.
Boyce, M. C. & Arruda, E. M. Constitutive models of rubber elasticity: a review. Rubber Chem. Technol. 3, 504–523 (2000). A review article that presents the constitutive models of rubber elasticity, which correlate the molecular structures of polymer networks to the macroscopic mechanical properties.
Bai, N. et al. Graded intrafillable architecture-based iontronic pressure sensor with ultra-broad-range high sensitivity. Nat. Commun. 11, 209 (2020). This work reports an iontronic sensor with a state-of-the-art sensitivity of up to 3,300 kPa−1.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: He, Y. et al. Creep-free polyelectrolyte elastomer for drift-free iontronic sensing. Nat. Mater. https://doi.org/10.1038/s41563-024-01848-6 (2024).
Rights and permissions
About this article
Cite this article
Drift-free iontronic sensing enabled by a creep-free polyelectrolyte elastomer. Nat. Mater. (2024). https://doi.org/10.1038/s41563-024-01851-x
Published:
DOI: https://doi.org/10.1038/s41563-024-01851-x