Temperature Sensors Based on Organic Field-Effect Transistors

Chemosensors

Daniel Afzal¹  John Polena¹  Jenner H. L. Ngai¹  Yuning Li¹ 

[1] Department of Chemical Engineering, Waterloo Institute for Nanotechnology (WIN), University of Waterloo, Waterloo, ON N2L 3G1, Canada;

关键词: temperature sensor;    sensitivity;    thermal coefficient of resistance (TCR);    organic field effect transistor;    organic thin film transistor;    organic semiconductor;   

DOI  :  10.3390/chemosensors10010012

来源: DOAJ

【 摘 要 】

The rapid growth of wearable electronics, Internet of Things, smart packaging, and advanced healthcare technologies demand a large number of flexible, thin, lightweight, and ultralow-cost sensors. The accurate and precise determination of temperature in a narrow range (~0–50 °C) around ambient temperatures and near-body temperatures is critical for most of these applications. Temperature sensors based on organic field-effect transistors (OFETs) have the advantages of low manufacturing cost, excellent mechanical flexibility, easy integration with other devices, low cross-sensitivity, and multi-stimuli detectability and, therefore, are very suitable for the above applications. This article provides a timely overview of research progress in the development of OFET-based temperature sensors. First, the working mechanism of OFETs, the fundamental theories of charge transport in organic semiconductors, and common types of OFET temperature sensors based on the sensing element are briefly introduced. Next, notable advances in the development of OFET temperature sensors using small-molecule and polymer semiconductors are discussed separately. Finally, the progress of OFET temperature sensors is summarized, and the challenges associated with OFET temperature sensors and the perspectives of research directions in this field are presented.

【 授权许可】

Unknown