New photoluminophore nanocomposite based on organic compound with Eu3+ ions and copolymer styrene-butylmethacrilate

作者：Iovu M S; Andriesh A M; Buzurniuc S A; Verlan V I^*; Turta C I; Zubareva V E; Caraman M I

来源：Journal of Non-Crystalline Solids, 2009, 355(37-42): 1890-1892.

DOI：10.1016/j.jnoncrysol.2009.04.047

• Nano-composites
• Optical properties
• Polymers and organics
• Rare-earths in glasses

New nanocomposite (NC) material on the base of thenoyltrifluoroacetone (TTA) coordinated with trivalent europium ions and structured with phenantroline (Eu(TTA)(3)Phen) and copolymer from styrene and butylmethacrylate (1:1) (SBMA) was prepared. The visible photoluminescence spectra of composites excited with N-2-laser (lambda = 0.337 mu m) at room and T = 78 K temperatures were studied. For the Eu(TTA)(3). Phen/SBMA nanocomposite material emission bands located at 578, 590, 612, 675 and 705 nm can be attributed to the spin forbidden f-f transitions D-5(0) -> F-7(i) (i = 0,1,2,3 and 4), respectively. The more intensive luminescence band situated at 612 nm with the half width of 3 nm is connected to the Eu3+ ion electronic transition D-5(0) -> F-7(2). It was shown that the maximum intensity of photoluminescence occurs at the concentration of 15% of the Eu(TTA)(3)Phen in the SBMA polymer matrix.

• 出版日期2009-10-1