We report on the preparation of both 2,5-di(9,9-dimethyl)fluorenyl-3,4-dihexyl-thiophene-S,S-dioxide and the related polymer with longer alkyl substitutions at 9 position. The optical, structural, and morphological characterizations of crystals and films showing noticeable EL properties are presented. Light emitting diodes (LEDs) show for the first time a good external efficiency (10-1) for a polymer containing S,S-dioxide groups.
Emission properties and solid-state aggregation in poly(fluorene-thiophene-S,S-dioxide) and its model oligomer
Destri S;Pasini M;Porzio W;
2003
Abstract
We report on the preparation of both 2,5-di(9,9-dimethyl)fluorenyl-3,4-dihexyl-thiophene-S,S-dioxide and the related polymer with longer alkyl substitutions at 9 position. The optical, structural, and morphological characterizations of crystals and films showing noticeable EL properties are presented. Light emitting diodes (LEDs) show for the first time a good external efficiency (10-1) for a polymer containing S,S-dioxide groups.File in questo prodotto:
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