Electroluminescence from Substituted Poly(thiophenes): From Blue to Near-Infrared

We report a systematic approach to the control of the conjugation length along the poly(thiophene) backbone. The planarity of the main chain can be permanently modified by altering the pattern of substitution and character of the substituents on the poly(thiophene) chain, and the conjugation length...

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Bibliographic Details
Published in:Macromolecules 1995-10, Vol.28 (22), p.7525-7529
Main Authors: Andersson, M. R, Berggren, M, Inganaes, O, Gustafsson, G, Gustafsson-Carlberg, J. C, Selse, D, Hjertberg, T, Wennerstroem, O
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Electronics
Exact sciences and technology
Optoelectronic devices
Organic polymers
Physicochemistry of polymers
Properties and characterization
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
TECHNOLOGY
TEKNIKVETENSKAP
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Summary:We report a systematic approach to the control of the conjugation length along the poly(thiophene) backbone. The planarity of the main chain can be permanently modified by altering the pattern of substitution and character of the substituents on the poly(thiophene) chain, and the conjugation length is thus modified. We obtain blue, green, orange, red, and near-infrared electroluminescence from four chemically distinct poly(thiophenes). The external quantum efficiencies are in the range of 0.01-0.6%.
ISSN:0024-9297
1520-5835
1520-5835
DOI:10.1021/ma00126a033