Chin. Phys. Lett.  1995, Vol. 12 Issue (6): 381-384    DOI:
Original Articles |
Blue Electroluminescent Devices Using the Dye Doped Polymers as Emitter and the Organic Molecule Film as Hole Blocking Layer
MA Yuguang;WU Jun*;XUE Shanhua*;TIAN Wenjing;LIU Shiyong*;SHEN Jiacong
Key Laboratory of Molecular Spectra and Structure, and *National Laboratory of Integrated Optic Electronics, Jilin University, Changchun 130023
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MA Yuguang, WU Jun, XUE Shanhua et al  1995 Chin. Phys. Lett. 12 381-384
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Abstract By placing a hole blocking layer between the polymer and the metallic electrode, we have achieved improved efficiencies for blue electroluminescent devices fabricated with poly (N-vinylcarbazole) doped with 1, 1, 4, 4, -tetraphenyl-1, 3-butadiene as the emitter layer and with aluminum and indium/tin-oxide as the electron and hole injecting electrodes. This bilayer device yields bright blue emission having intensity of 300cd/m2, in same case the devices without hole blocking layer have luminance of only 44 cd/m2.
Keywords: 78.60.Fi      81.20.Sh     
Published: 01 June 1995
PACS:  78.60.Fi (Electroluminescence)  
  81.20.Sh  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1995/V12/I6/0381
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MA Yuguang
WU Jun
XUE Shanhua
TIAN Wenjing
LIU Shiyong
SHEN Jiacong
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