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Characterizing the electroluminescence emission from a strongly coupled organic semiconductor microcavity LED

Characterizing the electroluminescence emission from a strongly coupled organic semiconductor microcavity LED
Characterizing the electroluminescence emission from a strongly coupled organic semiconductor microcavity LED
The fabrication of a strongly coupled organic semiconductor light emitting diode (OLED) is described. The device is characterised through angle‐resolved photoluminescence and electroluminescence spectroscopy, with the efficiency of the polariton OLED being compared to that of an equivalent weakly coupled device. The external emission efficiency of the polariton OLED is approximately 6 times smaller than that of the OLED; an effect that is attributed to the relatively slow scattering of excitons towards states at the bottom of the lower polariton branch. The temporal responses of the polariton and standard OLED devices are measured under pulsed voltage excitation, and device dynamics are found to be limited by charge transport and recombination.
2195-1071
503-509
Christogiannis, Nikolaos
d4aa55d5-ec9f-4a60-b3ad-3bd8e3e01fb3
Somaschi, Niccolo
8671acd4-2bd5-4773-9f8d-b52e381aad14
Michetti, Paolo
651e6984-296b-46c4-b263-d8e046303149
Coles, David M.
767b66af-227f-4bd0-a99e-d4ae77cf5106
Savvidis, Pavlos G.
9922c8cf-9504-4949-822c-767cdcad58be
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Lidzey, David G.
4c1f0189-29db-482f-896b-b90f28909baf
Christogiannis, Nikolaos
d4aa55d5-ec9f-4a60-b3ad-3bd8e3e01fb3
Somaschi, Niccolo
8671acd4-2bd5-4773-9f8d-b52e381aad14
Michetti, Paolo
651e6984-296b-46c4-b263-d8e046303149
Coles, David M.
767b66af-227f-4bd0-a99e-d4ae77cf5106
Savvidis, Pavlos G.
9922c8cf-9504-4949-822c-767cdcad58be
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Lidzey, David G.
4c1f0189-29db-482f-896b-b90f28909baf

Christogiannis, Nikolaos, Somaschi, Niccolo, Michetti, Paolo, Coles, David M., Savvidis, Pavlos G., Lagoudakis, Pavlos G. and Lidzey, David G. (2013) Characterizing the electroluminescence emission from a strongly coupled organic semiconductor microcavity LED. Advanced Optical Materials, 1 (7), 503-509. (doi:10.1002/adom.201300017).

Record type: Article

Abstract

The fabrication of a strongly coupled organic semiconductor light emitting diode (OLED) is described. The device is characterised through angle‐resolved photoluminescence and electroluminescence spectroscopy, with the efficiency of the polariton OLED being compared to that of an equivalent weakly coupled device. The external emission efficiency of the polariton OLED is approximately 6 times smaller than that of the OLED; an effect that is attributed to the relatively slow scattering of excitons towards states at the bottom of the lower polariton branch. The temporal responses of the polariton and standard OLED devices are measured under pulsed voltage excitation, and device dynamics are found to be limited by charge transport and recombination.

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More information

e-pub ahead of print date: 28 May 2013
Published date: July 2013

Identifiers

Local EPrints ID: 430552
URI: http://eprints.soton.ac.uk/id/eprint/430552
ISSN: 2195-1071
PURE UUID: ccb2bfc0-7327-4730-8fd1-871db784b723

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Date deposited: 03 May 2019 16:30
Last modified: 03 May 2019 16:30

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