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ElectroluminesCence Behavior in Polymer Blend of Two Luminescent Polymers

Published online by Cambridge University Press:  10 February 2011

Taehyoung Zyung
Affiliation:
Research Department, Electronics and Telecommunications Research Institute P.O. Box 106, Yusong, Taejon 305-600, Korea
Jang-Joo kim
Affiliation:
Research Department, Electronics and Telecommunications Research Institute P.O. Box 106, Yusong, Taejon 305-600, Korea
In-Nam kang
Affiliation:
Department of Chemistry, Korea Advanced Institute of Sceince and Technology 373-1, Gusung-dong, Yusong-gu, Taejon 305-701, Korea
Do-Hoon hwang
Affiliation:
Department of Chemistry, Korea Advanced Institute of Sceince and Technology 373-1, Gusung-dong, Yusong-gu, Taejon 305-701, Korea
Hongku Shim
Affiliation:
Department of Chemistry, Korea Advanced Institute of Sceince and Technology 373-1, Gusung-dong, Yusong-gu, Taejon 305-701, Korea
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Abstract

We report the electroluminescence behaviour of the devices made with the polymer blend of two emissible polymers, poly(2-methoxy,5-(2′ethyl-hexoxy)-1,4-phenylene vinylene)(MEHPPV) and poly[ 1,3-propanedioxy- 1,4-phenylene- 1,2-ethenylene-(2,5-bis(trimethylsilyl)- 1,4- phenylene)-l,2-ethenylene-l,4-phenylene](B-polymer) luminescing at 580 nm and 480 nm respectively. The quantum efficiency increases with the composition ratio of B-polymer by two order of magnitude of that of MEH-PPV. Luminescence behaviour of the blend system was explained by hole blocking, exciton transfer behavior of the matrix polymer (B-polymer) and efficient confinement of the injected carriers in MEH-PPV.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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References

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ElectroluminesCence Behavior in Polymer Blend of Two Luminescent Polymers
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