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Proceedings Paper

Blue and white organic light-emitting devices employing dimeric trimeric phenylenvinylene derivative as single-emitting component
Author(s): Yu Duan; Wenlong Jiang; Feng He; Gang Cheng; Ping Chen; Yi Zhao; Jingying Hou; Shiyong Liu M.D.; Yuguang Ma
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Paper Abstract

Two dimeric trimeric phenylenvinylene derivative 2, 5, 2', 5'-tetrakis (4'-fluorostyryl) biphenyl (P-F-TSB) and 2, 5, 2', 5'-tetra (p-trifluoromethylstyryl)-biphenyl (TFM-TSB) have been synthesized as new electroluminescent (EL) materials. P-F-TSB exhibits good color purity, high luminance of blue light-emission in organic light-emitting devices. Maximum brightness and luminous efficiency are of 1828 cd/m2 and of 1.92 cd/A, respectively. CIE coordinates are x=0.20 and y=0.22. Interestingly, we can fabricate single layer white light-emitting device using TFM-TSB as emitting layer. The broad electroluminescence emission band may attribute to long-wavelength excimer and electromer emission in addition to the blue component from singlet excited state of individual TFM-TSB molecule. Furthermore, white-light emission can also be obtained with a typical three-layer structure of ITO/ NPB (50 nm)/ TFM-TSB (50 nm)/ Alq3 (30 nm)/LiF/Al device. The maximum brightness of this device is 809 cd/m2 at 217 mA/cm2 and 13V, and the maximum luminous efficiency is 1.49 cd/A at 11 mA/ cm2 and 8V.

Paper Details

Date Published: 5 May 2006
PDF: 8 pages
Proc. SPIE 6192, Organic Optoelectronics and Photonics II, 61921J (5 May 2006);
Show Author Affiliations
Yu Duan, Jilin Univ. (China)
Wenlong Jiang, Jilin Normal Univ. (China)
Feng He, Jilin Univ. (China)
Gang Cheng, Jilin Univ. (China)
Ping Chen, Jilin Univ. (China)
Yi Zhao, Jilin Univ. (China)
Jingying Hou, Jilin Univ. (China)
Shiyong Liu M.D., Jilin Univ. (China)
Yuguang Ma, Jilin Univ. (China)

Published in SPIE Proceedings Vol. 6192:
Organic Optoelectronics and Photonics II
Paul L. Heremans; Michele Muccini; Eric A. Meulenkamp, Editor(s)

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