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Instabilities of Eu-complex against ultraviolet (UV) light irradiation and annealing are important problems to solve before they can be practically applied in several applications, such as white light-emitting diodes, bioimaging sensors, and wavelength conversion films for silicon photovoltaic cells. By now, our research group demonstrated an encapsulation technique of tris (2-thenoyltrifluoroacetonato)(1,10-phenanthroline)...
A high-stability organic–inorganic composite emitting film has been realized via a sol–gel process using an optimized silane alkoxide and Eu-complex. We found that the long-term and thermal stabilities were improved by using a combined starting solution of phenyltrimethoxysilane and tetrametoxysilane as encapsulating agent. The resulting emitting film exhibited sharp red-luminescence under ultraviolet...
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