A method of manufacturing an electroluminescent device which has an anode (4) and a cathode (10) and arranged between the anode (4) and the cathode (10) a light emissive layer (8), also includes an anode protection layer (6) which protects the anode (10) against the effects of converting a precursor polymer to a semiconductive conjugated polymer which constitutes the light emissive layer (8). This has been found to increase the brightness and half-life of devices.

Um método de manufaturar um dispositivo eletroluminescente que tenha um ânodo (4) e um cátodo (10) e arranjado entre o ânodo (4) e o cátodo (10) uma camada emissive clara (8), inclui também uma camada da proteção do ânodo (6) que proteja o ânodo (10) de encontro aos efeitos de converter um polímero do precursor a um polímero conjugated semiconductive que constitua a camada emissive clara (8). Isto foi encontrado para aumentar o brilho e o half-life dos dispositivos.

 
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