NOVELTY - A composition (C1) comprises: a host and a dopant in a weight:weight ratio of 10:1 to 40:1, where the host is a distyrylarylene compound or mixtures of a distyrylarylene compound and a diarylantracene compound; and a solvent.    USE - For forming an organic electronic device; and in article useful in the manufacture of organic electronic device (claimed). The organic electronic devices include devices that convert electrical energy into radiation (e.g. light-emitting diode (preferably organic light-emitting diode (OLED) such as blue or green OLED), light emitting diode display, diode laser, or lighting panel); devices that detect signals through electronic processes (e.g. photodetectors photoconductive cells, photoresistors, photoswitches, phototransistors, phototubes, infrared (IR) detectors, or biosensors); devices that convert radiation into electrical energy (e.g. photovoltaic device, or solar cell); and devices that include electronic component(s) including organic semiconductor layer(s) (e.g. transistor, or diode). The electronic devices also includes coating materials for memory storage devices, antistatic films, biosensors, electrochromic devices, solid electrolyte capacitors, energy storage devices such as rechargeable battery, and electromagnetic shielding applications.    ADVANTAGE - The photoactive composition allows for fabrication of high performance fluorescent blue or green organic light-emitting diode (OLED) devices.    DETAILED DESCRIPTION - A composition (C1) comprises: a host and a dopant in a weight:weight ratio of 10:1 to 40:1, where the host is a distyrylarylene compound of formula (I) or mixtures of a distyrylarylene compound and a diarylantracene compound; and a solvent.    R1-R30=H, alkyl, alkoxy, or aryl.    INDEPENDENT CLAIMS are included for the following:    (1) method for forming an organic electronic device involving: providing the composition (C1), and depositing the composition (C1) as a liquid;    (2) an organic electronic device (100) comprising: an active layer (130) including the composition (C1);    (3) a composition (C2) comprising: the composition (C1); and    (4) an article useful in the manufacture of organic electronic device, comprising: the composition (C1).    DESCRIPTION OF DRAWING(S) - The figure shows the organic electronic device.    Organic electronic device (100)    Substrate (105)    Anode layer (110)    Optional buffer layer (120)    Organic layer/active layer (130)    Transport layer (140)    Electron injection layer (150)    Second electrical contact layer (160)    Encapsulation layer (170)