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Luminescence properties of Eu3+/thenoyltrifluoroacetonate composites

M. S. IOVU1,* , A. M. ANDRIESH1, S. A. BUZURNIUC1, V. I. VERLAN1, M. I. CARAMAN2, V. E. ZUBAREV3

Affiliation

  1. Centre of Optoelectronics of the Institute of Applied Physics, Academy of Sciences of Moldova, Str. Academiei 5, MD-2028 Chisinau, Republic of Moldova
  2. Moldova State University, Moldova
  3. Institute of Chemistry of the Academy of Sciences of Moldova, Moldova

Abstract

New composite material on the base of thienyltrifluoroacetonate (TTA) coordinated with trivalent europium ions without and with polymer from styrene and butylmethacrilate (1:1) (SBMA) was prepared. The visible emission spectra of the composites at room temperature and at T=78 K when excited with Ar-laser (λ=0.33 μm). For the Eu3+/TTA composite material some sharp emission bands located at 5795, 590, 596, 615 and 620 nm at T=300 K, and at 580, 593, 595, 614, 618, 651, 656, 694, 698, and 700 nm at T=78 K were detected. The emission bands centered at 580, 590, 615, 651, and 700 nm can be attributed to the spin forbidden f-f transitions 5D0 → 7Fi (i = 0,1,2,3 and 4), respectively.. New composite material on the base of thienyltrifluoroacetonate (TTA) coordinated with trivalent europium ions without and with polymer from styrene and butylmethacrilate (1:1) (SBMA) was prepared. The visible emission spectra of the composites at room temperature and at T=78 K when excited with Ar-laser (λ=0.33 μm). For the Eu3+/TTA composite material some sharp emission bands located at 5795, 590, 596, 615 and 620 nm at T=300 K, and at 580, 593, 595, 614, 618, 651, 656, 694, 698, and 700 nm at T=78 K were detected. The emission bands centered at 580, 590, 615, 651, and 700 nm can be attributed to the spin forbidden f-f transitions 5D0 → 7Fi (i = 0,1,2,3 and 4), respectively..

Keywords

Composites, Polymer, Rare-earth ion, Thin film, Optical absorption, Fluorescence, Organic polymers.

Submitted at: Feb. 25, 2008
Accepted at: April 4, 2008

Citation

M. S. IOVU, A. M. ANDRIESH, S. A. BUZURNIUC, V. I. VERLAN, M. I. CARAMAN, V. E. ZUBAREV, Luminescence properties of Eu3+/thenoyltrifluoroacetonate composites, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 841-844 (2008)