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Issue 31, 2013
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Efficient light emitting devices based on phosphorescent partially doped emissive layers

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Abstract

We report efficient organic light emitting devices employing an ultrathin phosphor emissive layer. The electroluminescent spectra of these devices can be tuned by introducing a low-energy emitting phosphor layer into the emission zone. Devices with the emissive layer consisting of multiple platinum-complex/spacer layer cells show a peak external quantum efficiency of 18.1%, which is among the best EQE values for platinum-complex based light emitting devices. Devices with an ultrathin phosphor emissive layer show stronger luminance decay with the operating time compared to the counterpart devices having a host–guest emissive layer.

Graphical abstract: Efficient light emitting devices based on phosphorescent partially doped emissive layers

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Article information


Submitted
18 Apr 2013
Accepted
26 May 2013
First published
29 May 2013

J. Mater. Chem. C, 2013,1, 4663-4666
Article type
Paper

Efficient light emitting devices based on phosphorescent partially doped emissive layers

X. Yang and G. E. Jabbour, J. Mater. Chem. C, 2013, 1, 4663
DOI: 10.1039/C3TC30721B

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