Spectral properties of polymer composites doped with boron difluoride β-ketoiminates

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Polymeric luminescent compositions based on polycarbonate and polystyrene doped with β-ketoiminates of boron difluoride were obtained. The luminescent properties of 12 dyes with different substituents were investigated. The influence of the concentration of boron difluoride βketoiminates on the spectral properties of the samples was studied. It was found that the investigated dyes are characterized by monomeric luminescence even at tenfold increase of luminophore concentration (0.05–0.5%). It was found that compositions containing the dyes 3-amino-1-phenyl-2-buten-1-oneate of boron difluoride (1a) and 3-amino-1-phenyl-2-buten-1-oneate of boron difluoride (2a) exhibit exciplex luminescence in polystyrene.

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Sobre autores

R. Bodyk

Far Eastern Federal University

Autor responsável pela correspondência
Email: bodyk.re@dvfu.ru
Rússia, Ajax settlement, Russky Island, Vladivostok

A. Khrebtov

Far Eastern Federal University; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences

Email: bodyk.re@dvfu.ru
Rússia, Ajax settlement, Russky Island, Vladivostok; Vladivostok

G. Tretyakova

Far Eastern Federal University; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences

Email: bodyk.re@dvfu.ru
Rússia, Ajax settlement, Russky Island, Vladivostok; Vladivostok

E. Fedorenko

Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences

Email: bodyk.re@dvfu.ru
Rússia, Vladivostok

A. Mirochnik

Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences

Email: bodyk.re@dvfu.ru
Rússia, Vladivostok

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2. Scheme 1. Structural formulas of β-ketoiminates of boron difluoride.

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3. Fig. 1. Time-resolved luminescence spectra of 1a in PS (a), recorded after 75.5 (1), 76 (2), 77.1 ns (3), and 2a in PS (a), recorded after 75.5 (1), 75.6 (2), 75.7 ns (3), from the moment of the laser pulse.

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4. Fig. 2. Spectra 1c (a) and 2c (b) in the PC matrix at different phosphor concentrations: 1 – absorption spectrum at a concentration of 0.05%; 2 – luminescence spectrum at a concentration of 0.05%; 3 – absorption spectrum at a concentration of 0.5%; 4 – luminescence spectrum at a concentration of 0.5%.

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