Jump to main content
Jump to site search

Issue 12, 2018
Previous Article Next Article

Theoretical study and structural optimization of a flexible piezoelectret-based pressure sensor

Author affiliations

Abstract

Flexible pressure sensors have attracted increasing attention for wide application in wearable electronics and artificial intelligence. To enhance the pressure sensitivity of such sensors, a theoretical study based on modeling and experimental validation is required. Here, we theoretically demonstrated a method for optimizing the sensitivity of flexible piezoelectret-based pressure sensors (FPPS) by investigating the electric-mechanical behavior. A new model was established to estimate the compressibility and analyze the pressure sensitivity of the tunable FPPS. Experimental verification was carried out by fabrication of an FPPS based on a perfluoro (alkoxy alkane) (PFA) electret and tuning of the supporting structures. Based on tuning of the pressure sensitivity of the FPPS, a pressure sensor with a sensitivity of 15 V kPa−1 in the range of 0–2.5 kPa was demonstrated and successfully applied for energy harvesting and self-powered human biological signal detection.

Graphical abstract: Theoretical study and structural optimization of a flexible piezoelectret-based pressure sensor

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Jan 2018, accepted on 22 Feb 2018 and first published on 23 Feb 2018


Article type: Paper
DOI: 10.1039/C8TA00688A
Citation: J. Mater. Chem. A, 2018,6, 5065-5070
  •   Request permissions

    Theoretical study and structural optimization of a flexible piezoelectret-based pressure sensor

    N. Wu, S. Chen, S. Lin, W. Li, Z. Xu, F. Yuan, L. Huang, B. Hu and J. Zhou, J. Mater. Chem. A, 2018, 6, 5065
    DOI: 10.1039/C8TA00688A

Search articles by author

Spotlight

Advertisements