Chin. Phys. Lett.  1995, Vol. 12 Issue (7): 428-430    DOI:
Original Articles |
Carriers Confinement for Polymer Electroluminescent Devices with Multilayer Structure
MA Yuguang;TIAN Wenjing;XUE Shanhua*;HUANG Jinsong*;LIU Shiyong*;SHEN Jiacong
Key Laboratory of Molecular Spectra and Structure, *National Laboratory of Integrated Optical Electronics, Jilin University, Changdun 130023
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MA Yuguang, TIAN Wenjing, XUE Shanhua et al  1995 Chin. Phys. Lett. 12 428-430
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Abstract The polymer electroluminescence (EL) device with PBD as carriers confinement layer yields bright blue emission having intensity of 300cd/m2, in same case the device without PBD layer have luminance only 44 cd/m2. The effect of PBD layer on EL characteristic was studied. The results show that only in EL devices with PBD thick-ness over 30nm, the holes are completely confined in emitting layer. The luminance over 2000cd/m2 can be obtained by inserting an electron injecting layer between the negative electrode and PED to increase the electron injection.
Keywords: 78.55.-m      78.60.Fi      81.20.Sh     
Published: 01 July 1995
PACS:  78.55.-m (Photoluminescence, properties and materials)  
  78.60.Fi (Electroluminescence)  
  81.20.Sh  
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http://cpl.iphy.ac.cn/       OR      http://cpl.iphy.ac.cn/Y1995/V12/I7/0428
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MA Yuguang
TIAN Wenjing
XUE Shanhua
HUANG Jinsong
LIU Shiyong
SHEN Jiacong
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