The invention further relates to the use of polymers, polymer blends and {HEAD ~ formulations} according to {TAIL ~ the present invention} as charge transport, semiconducting, electrically conducting, photoconducting or light emitting material in optical, electrooptical, electronic, electroluminescent or photoluminescent components or devices 
The invention further relates to the use of polymers , polymer blends and { HEAD ~ formulations } according to { TAIL ~ the present invention } as charge transport , semiconducting , electrically conducting , photoconducting or light emitting material in optical , electrooptical , electronic , electroluminescent or photoluminescent components or devices
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