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Synthesis and electro-optical properties of polythiophene derivatives for electroluminescence display

A new series of light emitting polymers composed of thiophene repeating units were synthesized and characterized by oxidative polymerization. Introduction of alkyloxyphenyl substitutent into the 3-position of the thiophene unit not only influences solubility but also controls the emission colors and...

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Bibliographic Details
Published in:Optical materials 2003, Vol.21 (1), p.153-157
Main Authors: Jin, S.H., Yoo, B.U., Kang, S.Y., Gal, Y.S., Moon, D.K.
Format: Article
Language:English
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Summary:A new series of light emitting polymers composed of thiophene repeating units were synthesized and characterized by oxidative polymerization. Introduction of alkyloxyphenyl substitutent into the 3-position of the thiophene unit not only influences solubility but also controls the emission colors and electro-optical properties. Chemical structures of the resulting polymers were confirmed by UV–visible, 1H- and 13C-NMR spectra. The resulting polymers were soluble in common organic solvents and could be spin-cast onto ITO glass substrate to obtain optical thin films without defects. The turn-on voltage of the polymers were about 4.5–6.5 V and emitted a red color on forward bias.
ISSN:0925-3467
1873-1252
DOI:10.1016/S0925-3467(02)00128-3