| abstract |
The present invention relates to a blend comprising: a) at least one polymer or copolymer or a mixture of several polymers and/or copolymers which comprise a main chain and a side chain, wherein at least one side chain contains a structural unit of the following formula (I), the symbols and indices used being defined further below; b) at least one host molecule having electron-transporting or hole-transporting functionality, and c) at least one emitter molecule. |