Issue 25, 2024

Emerging electrochemical humidity sensors for zero power consumption and self-powered humidity detection: a perspective

Abstract

Electrochemical humidity (ECH) sensor integrated humidity sensing and power generation functions not only can spontaneously output humidity sensing voltage and achieve zero power consumption (excitation voltage free), but also have the high output power potential of a battery, which is expected to power other electronic devices in the circuit system, receiving widespread attention in the field of power generation humidity sensors. However, there are still the following issues with the ECH sensor: (1) the working principle is not yet clear and even controversial; (2) the humidity sensing and power generation performances need to be improved; (3) a self-powered humidity detection system needs to be realized. This perspective aims to provide an overview of the ECH sensor based on the above issues. In addition, insights and solutions are proposed to address the current issues faced by the ECH sensor in terms of mechanisms, materials, structures, performances and applications. With this perspective article, the basic research and practical applications of the ECH sensor with zero power consumption and self-powered potential are expected to make significant progress in the future.

Graphical abstract: Emerging electrochemical humidity sensors for zero power consumption and self-powered humidity detection: a perspective

Article information

Article type
Perspective
Submitted
16 အောက် 2023
Accepted
04 ဖေ 2024
First published
06 ဖေ 2024

J. Mater. Chem. A, 2024,12, 14975-14985

Emerging electrochemical humidity sensors for zero power consumption and self-powered humidity detection: a perspective

Z. Duan, M. Zhang, Y. Jiang, Z. Yuan and H. Tai, J. Mater. Chem. A, 2024, 12, 14975 DOI: 10.1039/D3TA06283J

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