We report on the preparation of both 2,5-di-(9,9-dimethylfluoren-2-yl)-3,4-dihexyl-thiophene-1,1- dioxide and the related polymer with longer alkyl substituents at 9 fluorene position. The optical, structura,l and morphological characterisations of crystl and films showing noticeable EL properties are presented Light emitting diodes (LED) show for the first time a good external efficiencyd external efficiency ( more than 0,1%.) for polymer containing S-S-dioxide groups
Electroluminescence and aggregation in fluorene-thiophene-S,S-dioxide: Oligomers and polymers
S Destri;M Pasini;W Porzio;U Giovanella;G Gigli;
2003
Abstract
We report on the preparation of both 2,5-di-(9,9-dimethylfluoren-2-yl)-3,4-dihexyl-thiophene-1,1- dioxide and the related polymer with longer alkyl substituents at 9 fluorene position. The optical, structura,l and morphological characterisations of crystl and films showing noticeable EL properties are presented Light emitting diodes (LED) show for the first time a good external efficiencyd external efficiency ( more than 0,1%.) for polymer containing S-S-dioxide groupsFile in questo prodotto:
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Descrizione: Electroluminescence and aggregation in fluorene thiophene-S-S-dioxide :oligomers and polymers
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