Chinese Journal of Applied Chemistry ›› 1987, Vol. 0 ›› Issue (6): 14-17.
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Zhang Jingjun, Lu Feng, Su Qiang
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Abstract: In this paper, the preparation, crystal structure and spectral properties of M2Y0.94-RE0.06NbO6 (M=Ca, Sr, Ba; RE=Eu, Sm, Dy) have been studied. The X-ray powder diffraction data and Eu3+-emission spectra showed that Ca2Y0.94Eu0.06NbO6 with distorted perovskite structue belongs to monoclinic system, the site symmetry may be C2 or Cs; Sr2Y0.94-Eu0.06NbO6 and Ba2Y0.94Eu0.06 NbO6 with ordered perovskite structure belong to cubic system the site symmetry may be Oh. It is found that the spectral properties of Eu3+, Sm3+ and Dy3+ intensify regularly in order of Ba-Sr-Ca.
Zhang Jingjun, Lu Feng, Su Qiang. PREPARTION,CRYSTAL STRUCTURE AND SPECTRA OF RARE EARTH-ALKALINE EARTH NIOBATE OF PEROVSKITE TYPE[J]. Chinese Journal of Applied Chemistry, 1987, 0(6): 14-17.
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