Photoluminescence in composites based on polyvinylidene fluoride and filler CaGa2S4:Eu2+
Tagiyev O. B. 1,2, Asadov E. G.1, Kazymova F. A.1, Ibragimov T. D.1, Ramazanova I. S.1, Nuraliev A. F. 1
1 Institute of Physics of the Ministry of Science and Education, Baku, Azerbaijan
2 Baku Branch of Lomonosov Moscow State University, Baku, Azerbaijan
Email: oktay58@mail.ru, elsenesedov@gmail.com, kazimova-f@mail.ru, tdibragimov@mail.ru, irada-sultanakhmedova@rambler.ru, akif-55@mail.ru

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The excitation and photoluminescence spectra of composites based on PVDF and filler have been measured at room temperature. The photoluminescence spectra were analyzed at different concentrations of Eu2+ ions. It was found out that positions of PL spectra maxima do not change with an increase in the content of Eu2+ ions in the compound and remain ~ 550 nm at all percentages. Radiation with such a maximum is caused by the 4f65d1-> 4f75d electronic transition. Keywords: photoluminescence, excitation, rare earth element, phosphor, europium.
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