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https://doi.org/10.1016/S0167-577X(00)00107-5

has been cited by the following article:

• TITLE: Synthesis of Tenoltrifluoroacetone Composite Doped with Terbium, Dysprosium and Europium Encapsulated in Silica Oxide Matrix

  AUTHORS: Yazmin Francisco, Dulce Medina, Miguel Barron, Joan Reyes, Pedro Adrian Martinez, Angel de Jesus Morales, Elizabeth Garfias

  KEYWORDS: Synthesis, Luminescence, Composite, Sol-Gel, Terbium, Dysprosium and Europium

  JOURNAL NAME: Journal of Surface Engineered Materials and Advanced Technology, Vol.10 No.4, October 30, 2020

  ABSTRACT: The synthesis of the thenoyltrifluoroacetone compound doped with terbium, dysprosium and europium encapsulated in a silica matrix (TTA:Tb:Dy:Eu@SiO2) were performed by the sol-gel method. The precursors to obtain the vitreous phase (SiO2) were: Tetraethylorthosilicate (TEOS, C8H2O4Si, 98%, Aldrich), and ethyl alcohol (CH3CH2OH, 99.5%, Meyer), distilled water and 0.05 ml of hydrochloric acid (HCl, Meyer). The sample with molar ratio 20:80 TTA:Tb:Dy:Eu@SiO2 has the best emission intensity. Thermogravimetric analysis (TGA) shown that silica encapsulated samples decompose at lower temperatures than pure TTA:Tb:Dy:Eu luminescent material. Fourier Transform Infrared (IR-TF) shown the characteristic Si-O-Si bands that are presented at a wavelength of 1049, 853 and 440 cmǃ confirming that the luminescent material is encapsulated in a silica matrix, finally X-ray diffraction (XRD) shown that TTA:Tb:Dy:Eu@SiO2 composite is amorphous.