An organic composite comprising an electroactive material and an organic phosphorescent dye. The electroactive material and organic phosphorescent dye have been functionalized in order that when they are mixed together and a curing amount of radiation or heat is applied, the phosphorescent dye is covalently bonded to the crosslinked electroactive material. The method to prepare the organic composite is given. The invention is suitable for the mass production of any light management system. In one embodiment light emitting diodes are described.