| 摘要 |
A device comprising an electroluminescent copolymer which copolymer comprises a light-emitting repeat unit in the polymer backbone and wherein the repeat unit is conjugatively separate from the polymer backbone. Wherein the light emitting repeat unit comprises: and wherein Ar1 comprises an anthracene group or a fused aromatic or hetreoaromatic ring and each Ar2 is an aromatic or heteroaromatic ring |
