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Fluorescent grating patterns of photopolymer film containing ethylene glycol phenyl ether acrylate.

Photopolymer films containing photoreactive monomers in the presence of fluorescent polyanthracene were investigated for fluorescent grating pattern formation using a 3D holographic method. A monofunctional acrylate, ethylene glycol phenyl ether acrylate (PA), was used as the core monomer for the formation of the polymerization induced grating pattern. Photopolymer films were prepared from a mixture of PA and polyanthracene with a binder polymer and a photo radical initiator. The film's thickness was adjusted by the solution's composition to optimize grating pattern efficiency (>90%). The diffraction efficiency was increased in the presence of polyanthracene. Furthermore, the fluorescence intensity was more enhanced after grating formation. A vivid fluorescent gap electrode pattern with fine gratings was patterned, providing a new method for patterning organic thin films with distinct read-out processes.