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

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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

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Publication details

The article was received on 05 Jun 2017, accepted on 08 Nov 2017 and first published on 13 Nov 2017


Article type: Review Article
DOI: 10.1039/C7QM00258K
Citation: Mater. Chem. Front., 2018, Advance Article
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    Electrolyte-gated light-emitting transistors: working principle and applications

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

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