Special Section on Organic Light-Emitting Materials and Devices

Developments in solution processable polymer light-emitting diodes

[+] Author Affiliations
Martin J. Humphries, Richard J. Wilson, Oscar Fernandez, Robert A. Archer

Cambridge Display Technology Ltd., Greenwich House, Madingley Rise, Cambridge, CB3 0TX, United Kingdom

J. Photon. Energy. 1(1), 011019 (April 14, 2011). doi:10.1117/1.3569108
History: Received September 06, 2010; Revised January 31, 2011; Accepted March 01, 2011; Published April 14, 2011; Online April 14, 2011
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A device structure that enables the combination of phosphorescent green and fluorescent blue emitters in a solution processed polymer organic light-emitting diode device has been developed. Results demonstrate that it is possible to tune the color of emission by appropriate formulation of the polymers that are used. This enabled the development of a warm white device that had CIE coordinates of (0.462, 0.426), and an external quantum efficiency (EQE) of 13.1%. This EQE was limited by the efficiencies of the emitters used rather than through any internal quenching, and thus the device structure offers potential for further development.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Martin J. Humphries ; Richard J. Wilson ; Oscar Fernandez and Robert A. Archer
"Developments in solution processable polymer light-emitting diodes", J. Photon. Energy. 1(1), 011019 (April 14, 2011). ; http://dx.doi.org/10.1117/1.3569108


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