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Luminescent polymer electrolytes based on chitosan and containing europium triflate

Alves, R. ; de Camargo, A.S.S. ; Pawlicka, A. ; Silva, M.M.

Journal of rare earths, 2016-07, Vol.34 (7), p.661-666 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Luminescent polymer electrolytes based on chitosan and containing europium triflate
  • Autor: Alves, R. ; de Camargo, A.S.S. ; Pawlicka, A. ; Silva, M.M.
  • Assuntos: natural polymers ; photoluminescence spectroscopy ; rare earths ; solid polymer electrolytes ; X-射线衍射 ; X射线衍射 ; 光致发光光谱 ; 原子力显微镜分析 ; 固体聚合物电解质 ; 壳聚糖 ; 扫描电子显微镜 ;
  • É parte de: Journal of rare earths, 2016-07, Vol.34 (7), p.661-666
  • Notas: Solid polymer electrolytes based on chitosan and europium triflate were prepared by solvent casting and characterized by X-ray diffraction, scanning electron microscopy (SEM), atomic force microscopy (AFM), and photoluminescence spectroscopy. The X-ray diffraction exhibited that the samples were essentially amorphous with organized regions over the whole range of the salt content studied. The AFM analysis demonstrated that the smoother sample had roughness of 4.39 nm. Surface visualization through SEM revealed good homogeneity without any phase separation for more conductive samples and the less conductive showed some im- perfections on the surface. The emission and excitation spectra displayed the characteristic bands of Eu(CF3SO3)3 in addition to broad bands corresponding to the polymer host. The excited state 5D0 lifetime values ranged from 0.29-0.37 ms for the studied samples.
    11-2788/TF
    solid polymer electrolytes; natural polymers; photoluminescence spectroscopy; rare earths
  • Descrição: Solid polymer electrolytes based on chitosan and europium triflate were prepared by solvent casting and characterized by X-ray diffraction, scanning electron microscopy (SEM), atomic force microscopy (AFM), and photoluminescence spectroscopy. The X-ray diffraction exhibited that the samples were essentially amorphous with organized regions over the whole range of the salt content studied. The AFM analysis demonstrated that the smoother sample had roughness of 4.39 nm. Surface visualization through SEM revealed good homogeneity without any phase separation for more conductive samples and the less conductive showed some im- perfections on the surface. The emission and excitation spectra displayed the characteristic bands of Eu(CF3SO3)3 in addition to broad bands corresponding to the polymer host. The excited state 5D0 lifetime values ranged from 0.29-0.37 ms for the studied samples.
  • Editor: Elsevier B.V
  • Idioma: Inglês

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