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Electroluminescence Spectral Imaging in Polymer Blend Light Emitting Diodes

Published online by Cambridge University Press:  01 February 2011

Noriyuki Takada
Affiliation:
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, JAPAN
Kiyohiko Tsutsumi
Affiliation:
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, JAPAN
Toshihide Kamata
Affiliation:
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, JAPAN
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Abstract

The spectral imaging for electroluminescence (EL) characterization in the light emitting diode (LED) based on blends of poly[2,7-(9,9-di-n-octylfluorene)] (PFO) and poly[2,7-(9,9-di-n-octylfluorene)-alt-(1,4-phenylene-((4-sec-butylphenyl)amino)-1,4-phenylene) ] (TFB) was performed using the two dimensional imaging micro-spectroscopy system. We found that EL spectral images varied with increasing applied voltages. The origin for such variation of EL spectral images will be discussed in this report.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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References

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