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

Smagin, V. P.; Isaeva, A. A.; Lyakhova, Yu. V.; Eremina, Nina S.

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

Smagin, V. P., Isaeva, A. A., Lyakhova, Yu. V., Eremina, Nina S.

Дата публикации: 2017

Дата публикации в реестре: 2020-03-03T19:01:31Z

Аннотация:

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.

Ключевые слова:
люминесценция, сульфид кадмия, метилметакрилат, европий, тербий, композиты, наночастицы

Тип: статьи в журналах

Источник: Inorganic materials. 2017. Vol. 53, № 3. P. 263-270