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http://m.apl.aip.org/resource/1/applab/v98/i3/p033302_s1?view=fulltext&bypassSSO=1
Appl. Phys. Lett. 98, 033302 (2011); doi:10.1063/1.3541447 (3 pages)
Efficient organic light-emitting devices with platinum-complex emissive layer
Xiaohui Yang1, Fang-Iy Wu2, Hanna Haverinen3, Jian Li1, Chien-Hong Cheng2, and Ghassan E. Jabbour1
1School of Materials, Arizona State University, Tempe, Arizona 85284, USA map
2Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan map
3Optoelectronics and Measurement Technique Laboratory, P.O. Box 4500, 90014, University of Oulu, Finland map
We report efficient organic light-emitting devices having a platinum-complex emissive layer with the peak external quantum efficiency of 17.5% and power efficiency of lm?W 45-1. Variation in the device performance with platinum-complex layer thickness can be attributed to the interplay between carrier recombination and intermolecular interactions in the layer. Efficient white devices using double platinum-complex layers show the external quantum efficiency of 10%, the Commission Internationale d’Énclairage coordinates of (0.42, 0.41), and color rendering index of 84 at cd?m 1000-2.
© 2011 American Institute of Physics
......posted on 1.18.2011 3 pages free to read

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