NEW PHOTOLUMINOPHORE NANOCOMPOSITE BASED ON ORGANIC COMPOUND WITH Eu3+ IONS AND COPOLYMER STYRENE-BUTYLMETHACRILATE
Date
2009
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
New nanocomposite (NC) material on the base of thenoyltrifluoroacetone (TTA) coordinated with triva-
lent europium ions and structured with phenantroline (Eu(TTA)3Phen) and copolymer from styrene and
butylmethacrylate (1:1) (SBMA) was prepared. The visible photoluminescence spectra of composites
excited with N2-laser (k = 0.337 lm) 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 5D0 ? 7Fi (i = 0,1,2,3 and 4), respectively. The more inten-
sive luminescence band situated at 612 nm with the half width of 3 nm is connected to the Eu3+ ion elec-
tronic transition 5D0 ? 7F2. It was shown that the maximum intensity of photoluminescence occurs at the
concentration of 15% of the Eu(TTA)3Phen in the SBMA polymer matrix.
Description
IOVU, Mihail; Andrei ANDRIEȘ; Svetlana BUZURNIUC; Victor VERLAN; Constantin TURTA; Vera ZUBAREVA și Mihail CARAMAN. New photoluminophore nanocomposite based on organic compound with Eu3+ ions and copolymer styrene-butylmethacrilate. Journal of Non-Crystalline Solids. 2009, vol. 355, pp. 1890-1892. ISSN 0022-3093.
Keywords
Nano-composites, Optical properties, Polymers and organics, Rare-earths in glasses
Citation
IOVU, Mihail; Andrei ANDRIEȘ; Svetlana BUZURNIUC; Victor VERLAN; Constantin TURTA; Vera ZUBAREVA și Mihail CARAMAN. New photoluminophore nanocomposite based on organic compound with Eu3+ ions and copolymer styrene-butylmethacrilate. Journal of Non-Crystalline Solids. 2009, vol. 355, pp. 1890-1892. ISSN 0022-3093.