Author/Authors :
Berggren، نويسنده , , Magnus and Inganنs، نويسنده , , Olle and Gustafsson، نويسنده , , Gِran and Andersson، نويسنده , , Mats R. and Hjertberg، نويسنده , , Thomas and Wennerstrِm، نويسنده , , Olof، نويسنده ,
Abstract :
We report electroluminescence using different substituted polythiophenes as the emitting mterial. Different substituents cause different sterical interacion which force the thiophene rings out of planarity. This results in different bandgaps. Colours from blue to near infrared have been demonstrated in electroluminescent devices. We also demonstrate voltage controlled electroluminescence using mixtures of these polymers.
