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Performance enhancement of white-electrophosphorescent devices incorporating a mixed-transition layer.

Wang, Y. and Hua, Y.L. and Wu, X.M. and Zhang, L.J. and Hou, Q.C. and Yin, S.G. and Petty, M.C. (2008) 'Performance enhancement of white-electrophosphorescent devices incorporating a mixed-transition layer.', Applied physics letters., 92 (12). p. 123504.

Abstract

The performance of white organic light-emitting devices has been improved significantly by incorporating a mixed-transition layer, consisting of the hole-transporting (or electron-transporting) layer doped with the emissive dye. These devices exhibit maximum current and power efficiencies of 13.3 cd/A and 11.3 lm/W, respectively (1.6 and 2 times higher than the corresponding values of devices without the mixed-transition layer), with slightly modified Commission Internationale De L’Eclairage coordinates, from (0.300, 0.371) to (0.312, 0.366). This is attributed to the enhancement of carrier transport by doping, thereby improving both the exciton formation probability and the charge transport balance.

Item Type:Article
Keywords:Electroluminescent devices, Organic compounds, Phosphors.
Full text:PDF - Published Version (266Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.2896606
Publisher statement:Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Wang, Y. and Hua, Y.L. and Wu, X.M. and Zhang, L.J. and Hou, Q.C. and Yin, S.G. and Petty, M.C. (2008) 'Performance enhancement of white-electrophosphorescent devices incorporating a mixed-transition layer.', Applied physics letters., 92 (12). p. 123504 and may be found at http://dx.doi.org/10.1063/1.2896606
Record Created:26 Oct 2012 11:05
Last Modified:29 Oct 2012 10:22

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