Wearable Electronic Devices Driven by Flexible OFETs

Yude Li

doi:10.54097/mfzd8106

Authors

Yude Li

DOI:

https://doi.org/10.54097/mfzd8106

Keywords:

Flexible organic thin-film transistors (OFETs); Wearable electronic devices; Energy harvesting; Intelligent sensing.

Abstract

This paper discusses flexible organic field-effect transistors (OFETs) in wearable medical, health and sports monitoring electronic applications including polariton organic light-emitting diodes (POLEDs), flexible sensors as well as self-powered and highly sensitive sensors. It reviews the structural features of flexible OFETs and emphasizes their dual function in energy harvesting and smart sensing. With energy harvesting, triboelectric nanogenerators (TENGs) and piezoelectric harvesters work together with OFETs to generate electricity from mechanical energy and store energy. For example, in smart sensing, they sense pressures, temperatures, glucose, and tumor markers through modulating the channel conductance. The review reports progress in material innovation and structural integration, and also ultra-fabric-like devices of OFET-TENG. It further discusses the remaining issues such as the stability of materials, energy conversion efficiencies and large-scale production, and proposes the prospects of commercialization of the technology through the modification of materials, 3D printing technology and the application of machine learning.

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