Synthesis and luminescence spectra of poly(methyl methacrylate)/CdS:Ln(III) composites

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европий | 2017

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Synthesis and luminescence spectra of poly(methyl methacrylate)/CdS:Ln(III) composites	843 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1134/S0020168517030086

Title: Synthesis and luminescence spectra of poly(methyl methacrylate)/CdS:Ln(III) composites
Creator: Smagin, V. P.
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Isaeva, A. A.
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Lyakhova, Yu. V.
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Eremina, Nina S.
Date: 2017
DOI: 10.1134/S0020168517030086
Description: Cadmium sulfide was prepared by colloidal synthesis in methyl methacrylate (MMA). Europium and terbium salts were added to the colloidal solutions. Using MMA radical polymerization, we synthesized PMMA/CdS:Eu(III), PMMA/CdS:Tb(III), and PMMA/CdS:Eu(III):Tb(III) luminescent composites. Their luminescence is due to defects in the CdS crystals and the 5Dо → 7Fj and 5D4 → 7Fj electronic transitions of the Eu3+ and Tb3+ ions, respectively. It depends on the composition of the materials, complexation on the surface of the colloidal particles, heat treatment time during synthesis, excitation wavelength, and other factors.