Abstract
Nanoparticles composed of Eu-complex and polyimide were successfully fabricated through an improved reprecipitation method, followed by a chemical imidization. In this process, the excess addition of triethylamine, which inhibits acid decomposition of Eu-complex, provided intense luminescent nanoparticles. These nanoparticles showed intense red luminescence assigned to Eu3+, which showed broader peaks compared with an Eu-complex powder and peak shifts. These results imply that Eu-complex molecules were dispersed in the PI matrix homogeneously and strongly affected by the matrix. Moreover, composition with polyimide improved UV resistance of Eu-complex.
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Acknowledgement
We thank Mr. T. Yokoo and Dr. F. Orito, Mitsubishi Chemical Co., for supplying us with Eu(DBM)3TPPO.
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Ishizaka, T., Kasai, H. & Nakanishi, H. Fabrication and luminescence properties of Eu-complex/polyimide composite nanoparticles. J Mater Sci 44, 166–169 (2009). https://doi.org/10.1007/s10853-008-3110-3
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DOI: https://doi.org/10.1007/s10853-008-3110-3