A study of the optical properties of poly(9,9-dioctylfluorene-co-bithiophene) (F8T2) is reported, identifying this polymer as one that posses combination of charge transport and light emission properties. The optical and morphological properties of a series of polymer blends dispersed in poly(9,9-dioctylfluorene) (PFO) are described an green emission from light emitting diodes (LEDs) based the demonstrated. High luminance green electroluminescence fro only a thin film of F8T2 for emission is also reported. The latter for a polymer previously primarily of interest for effective charge transport constitutes an important step in the development of emissive materials for applications where a union of efficient light emission and e transport is required.