NOVELTY - A photoradiation emission layer arranged between a pair of electrodes comprises a charge transport matrix material dispersed with emissive particulate. The emissive particulate generates photoradiation in response to application of voltage to the electrodes due to the electrical energy received by the charge transport matrix material, for selective polymerization of photoradiation curable organic material.    USE - For solar panel, charge coupled device (CCD) type camera, photosensor, illumination, architectural lighting, interior tent lighting, display backlighting, head-up display, commercial and roadway signage, monochromatic and full color static and video displays.    ADVANTAGE - Realizes high intensity photoradiation source having a narrow emission band and simple construction for selective polymerization of photoradiation curable organic material. Also the LED chips can be mounted directly without the use of solder or wire bonding.    DETAILED DESCRIPTION - The charge transport matrix material is transparent to photoradiation in a photoradiation spectrum effective for selective polymerization of the photo-radiation curable organic material. The photo-radiation spectrum comprises the range between ultraviolet and blue light. The electrodes are arranged on a flexible substrate. One of the electrodes are transparent to the photoradiation in the photoradiation spectrum, while the other electrode is reflective of at least a portion of the photoradiation emitted by the emissive particulate. The emissive particulate comprises an organic or inorganic multilayered semiconductor particulate. The semiconductor particulate includes at least one conjugated polymer having a sufficiently low concentration of extrinsic charge carriers, so that on applying an electric field between the contact layers to the semiconductor particulate through the conductive material, one of the conductive layers becomes positive relative to the other contact layer and the charge carriers are injected into the semiconductor particulate and combine to form charge carrier pairs which decay radiatively in the conjugated polymer, so that the radiation is emitted from the conjugated polymer. The organic light active particulate comprises particles including a polymer blend containing organic emitter blended with at least one of a hole transport material, an electron transport material and a blocking material. Microcapsules including a polymer shell encapsulates an internal phase of the polymer blend. The conductive carrier material comprises a binder material with one or more characteristic controlling additives including a dessicant, conductive phase, semiconductor phase, insulative phase, mechanical strength enhancing phase, adhesive enhancing phase, hole injection material, electron injection material, low working metal, blocking material and emission enhancing material. LED chips are permanently fixed in a formation by being squeezed between the electrodes, without the use of solder or wire bonding.    An INDEPENDENT CLAIM is also included for photoradiation source manufacturing method.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic sectional view of the photoradiation source.