New phosphors based on Eu3+-doped microporous titanosilicates

被引：68

作者：

Rainho, JP ^{[1
]}

Carlos, LD

Rocha, J

机构：

[1] Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

Eu3+; narsarsukite; microporous;

D O I：

10.1016/S0022-2313(99)00548-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Microporous titanosilicate ETS-10 doped with Eu3+ ions is used as a precursor for preparing novel dense materials, analogues of the mineral narsarsukite, which display a high and stable room-temperature luminescence. In the emission spectra of these phosphors a broad band (associated with the network of the titanosilicates) overlaps with the narrow intra-4f(6) D-5(0) --> F-7(0-4) lines. The presence of different Eu3+ local site symmetries, tentatively assigned to the C-1,C-2, C-s or C-2v point groups, is discussed based on the local field splitting of the F-7(1,2) energy levels. (C) 2000 Elsevier Science B.V. All rights reserved.

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页码：1083 / 1086

页数：4

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