Luminescent polymer electrolytes based on chitosan and containing europium triflate

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 ess...

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Bibliographic Details
Published inJournal of rare earths Vol. 34; no. 7; pp. 661 - 666
Main Authors Alves, R., de Camargo, A.S.S., Pawlicka, A., Silva, M.M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.2016
Subjects
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
铕
natural polymers
photoluminescence spectroscopy
solid polymer electrolytes
rare earths
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Summary: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.
Bibliography: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
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(16)60076-5