Thin film of ZnAl2O4:Eu3+ synthesized by a non-alkoxide precursor sol-gel method

Journal of the Brazilian Chemical Society

Renata F. Martins¹  Osvaldo A. Serra¹ 

[1] ,Universidade de São Paulo FFCLRP Departamento de QuímicaRibeirão Preto SP ,Brazil

关键词: zinc aluminate;    europium;    non-alkoxide;    sol-gel process;    UV-Vis transparent and luminescent films;   

DOI  :  10.1590/S0103-50532010000700028

来源: SciELO

【 摘 要 】

Europium-doped zinc aluminate (ZnAl2O4:Eu3+) films were prepared by the dip-coating technique using a non-alkoxide precursor sol-gel method in ethanolic medium. Photoluminescence spectra displayed the main excitation bands at 270 and 393 nm. The emission spectra of the film heated at 500 ºC displayed bands at 578, 590, 612, 650 and 698 nm, assigned to the 5D0 → 7F J (J = 0, 1, 2, 3, 4) transitions. The films are transparent above 320 nm.

【 授权许可】

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