Issue 2, 2018

Electrolyte-gated light-emitting transistors: working principle and applications

Abstract

Adding solid electrolytes into organic semiconductors broadens the scope of material properties and electronic applications. Successful examples include polymer light-emitting electrochemical cells, electrolyte-gated organic transistors, and electrolyte-gated organic light-emitting transistors (EGLETs). EGLETs combine an organic light-emitting device and a transistor with a high capacitance electrolytic dielectric. Here we summarize recent progress in the development of EGLETs in both planar and vertical device architectures. The former offers a lateral geometry and in-plane light-emission for scientific scaffolds in the fundamental study of organic semiconductor opto-physics. The latter features surface emission with a unity aperture ratio, and it can be used in matrix displays without the requirement of external thin-film transistor arrays as the switching circuitry. This strategy paves an easy avenue towards fabricating highly integrated organic optoelectronic devices, and it offers a new test bed for research in iontronics and organic electronics.

Graphical abstract: Electrolyte-gated light-emitting transistors: working principle and applications

Article information

Article type
Review Article
Submitted
05 6 2017
Accepted
08 11 2017
First published
13 11 2017

Mater. Chem. Front., 2018,2, 253-263

Electrolyte-gated light-emitting transistors: working principle and applications

J. Liu, F. Zhao, H. Li and Q. Pei, Mater. Chem. Front., 2018, 2, 253 DOI: 10.1039/C7QM00258K

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