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Jpn. J. Appl. Phys. 45 (2006) pp. L951-L953  |Previous Article| |Next Article|  |Table of Contents|
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Letter

Highly Efficient Yellowish-White Phosphorescent Organic Light-Emitting Devices

Shih-Feng Hsu, Inamur R. Laskar, Teng-Ming Chen, Jie-Wei Ma¹, Shiao-Wen Hwang² and Chin H. Chen²

Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30050, R.O.C.
¹Department of Photonics, National Chiao Tung University, Hsinchu, Taiwan 30050, R.O.C.
²Display Institute, Microelectronics and Information Systems Research Center, National Chiao Tung University, Hsinchu, Taiwan 30050, R.O.C.

(Received July 26, 2006; accepted August 1, 2006; published online September 1, 2006)

We have developed highly efficient yellowish-white organic light-emitting devices (WOLEDs) with very broad emission based on a orange emitter, (2-2'-(4-flurophenyl)benzothiozolato-N,C^2') platinum (acetylacetonate) [Pt(F-bt)acac]. A yellowish-white light device with one of the highest electroluminescent (EL) efficiencies of 19.68 cd/A (10.94%) with Commission Internationale d'Eclairage (CIE) coordinates of (x,y)=(0.399,0.453) has been demonstrated.

URL: http://jjap.jsap.jp/link?JJAP/45/L951/
DOI: 10.1143/JJAP.45.L951

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