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

Wang, Y; Hua, YL; Wu, XM; Zhang, LJ; Hou, QC; Yin, SG; Petty, MC

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


Authors

Y Wang

YL Hua

XM Wu

LJ Zhang

QC Hou

SG Yin

MC Petty



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.

Citation

Wang, Y., Hua, Y., Wu, X., Zhang, L., Hou, Q., Yin, S., & Petty, M. (2008). Performance enhancement of white-electrophosphorescent devices incorporating a mixed-transition layer. Applied Physics Letters, 92(12), Article 123504. https://doi.org/10.1063/1.2896606

Journal Article Type Article
Publication Date Mar 24, 2008
Deposit Date Oct 26, 2012
Publicly Available Date Oct 29, 2012
Journal Applied Physics Letters
Print ISSN 0003-6951
Electronic ISSN 1077-3118
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 92
Issue 12
Article Number 123504
DOI https://doi.org/10.1063/1.2896606
Keywords Electroluminescent devices, Organic compounds, Phosphors.

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Copyright Statement
© 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





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