Flexible Temperature Sensors.

Ruping Liu,Liang He,Zhicheng Sun,Ruiqi Zhu,Ye Li,Meijuan Cao

doi:10.3389/fchem.2021.539678

Abstract

Temperature reflects the balance between production and dissipate of heat. Flexible temperature sensors are primary sensors used for temperature monitoring. To obtain real-time and accurate information of temperature, different flexible temperature sensors are developed according to the principle of flexible resistance temperature detector (FRTC), flexible thermocouple, flexible thermistor and flexible thermochromic, showing great potential in energy conversion and storage. In order to obtain high integration and multifunction, various flexible temperature sensors are studied and optimized, including active-matrix flexible temperature sensor, self-powered flexible temperature sensor, self-healing flexible temperature sensor and self-cleaning flexible temperature sensor. This review focuses on the structure, material, fabrication and performance of flexible temperature sensors. Also, some typical applications of flexible temperature sensors are discussed and summarized.

Highlights

To the best of our knowledge, sensor is the key of various induction equipments, and a critical issue with great potential
We summarized the structure, material, fabrication and performance of flexible temperature sensors
The study results showed that the relationship of resistance of the flexible temperature sensor and distance between sensor and temperature source is linear, and the repeatability of the experimental results is good

Summary

Introduction

To the best of our knowledge, sensor is the key of various induction equipments, and a critical issue with great potential. It is demonstrated that preparation of the polymer merits and the sensing layer of conductive materials is a highly promising way for fabrication of high-performance FRTC. Applying the percolation effect is a possible strategy for obtaining enhanced sensitivity of temperature sensor (Shen et al, 2018), significantly decreasing resistance of the FRTC by several orders through filling a conductive material into an insulating polymer matrix, e.g., PDMS and silicon rubber (Sibinski et al, 2010).

Results

Conclusion