Unlocking the full potential of light emitting field-effect transistors by engineering charge injection layers

Tandy, Kristen, Ullah, Mujeeb, Burn, Paul L., Meredith, Paul and Namdas, Ebinazar B. (2013) Unlocking the full potential of light emitting field-effect transistors by engineering charge injection layers. Organic Electronics, 14 11: 2953-2961. doi:10.1016/j.orgel.2013.08.013


Author Tandy, Kristen
Ullah, Mujeeb
Burn, Paul L.
Meredith, Paul
Namdas, Ebinazar B.
Title Unlocking the full potential of light emitting field-effect transistors by engineering charge injection layers
Journal name Organic Electronics   Check publisher's open access policy
ISSN 1566-1199
1878-5530
Publication date 2013-11-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.orgel.2013.08.013
Volume 14
Issue 11
Start page 2953
End page 2961
Total pages 9
Place of publication Amsterdam , Netherlands
Publisher Elsevier BV
Language eng
Abstract Light emitting field-effect transistors (LEFETs) are a class of next generation devices which combine the switching properties of field-effect transistors (FETs) with light emitting capabilities of organic light-emitting diodes (OLEDs) in a single device architecture. Current LEFET architectures suffer from inefficient charge injection of electrons and holes from the source and drain electrodes, leading to unbalanced charge transport and hence poor device performance. Here we report a simple fabrication method for LEFETs that delivers asymmetric source and drain electrodes comprised of low and high work function materials. The interdigitated low and high work function source–drain electrodes consist of combinations of organic materials, salts, metal oxides and metals. Using this method we were able to obtain a maximum EQE of up to 1.2% in a single layer device with Super Yellow as the active material.
Keyword Fet
Otft
Light emitting transistor
Charge transport
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2014 Collection
School of Chemistry and Molecular Biosciences
 
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