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Proceedings Paper

Electroplex light emission based on BCP and a novel star-shaped hexafluorenylbenzene
Author(s): Tao Ma; Junsheng Yu; Shuangling Lou; Yadong Jiang; Qing Zhang
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Paper Abstract

Organic light emitting diode (OLEDs) are fabricated using a novel star-shaped hexafluorenylbenzene with a simple structure of indium-tin-oxide (ITO)/1,2,3,4,5,6-hexakis(9,9-diethyl-9H-fluoren-2-yl)benzene (HKEthFLYPh):N, N'-bis-(1-naphthyl)-N,N'-diphenyl-(1,1'-biphenyl)-4,4'-diamine (NPB)/2,9-dimenthyl-4,7-diphenyl-1,10-phenanthroline (BCP)/tris(8-hydroxyquinoline) aluminum (Alq3)/Mg:Ag by spin coating method. The electroluminescent properties of the device are characterized. The results show that there is a new peak at 600 nm, which is no appearance in PL spectra. This new emission is proposed to be electroplex that occurred at the solid-state interface between HKEthFLYPh and BCP in addition to the exciton emission from NPB. The Commissions Internationale De L'Eclairage (CIE) coordinates of the device are (x=0.33, y=0.29) at 10 V, which obviously belongs to white light emission.

Paper Details

Date Published: 22 May 2009
PDF: 5 pages
Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 728239 (22 May 2009); doi: 10.1117/12.831022
Show Author Affiliations
Tao Ma, Univ. of Electronic Science and Technology of China (China)
Junsheng Yu, Univ. of Electronic Science and Technology of China (China)
Shuangling Lou, Univ. of Electronic Science and Technology of China (China)
Yadong Jiang, Univ. of Electronic Science and Technology of China (China)
Qing Zhang, Shanghai Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 7282:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; John M. Schoen; Yoshiharu Namba; Shengyi Li, Editor(s)

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