Luminescence of Siliconiobates.
Luminescence of Siliconiobates.
复制标题
硅铌酸盐的发光。
DOI：
10.1002/chin.199125002
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Y. Piffard
中科院分区：
文献类型：
--
作者：
G. Blasse;G. Dirksen;M. Crosnier;Y. Piffard
The siliconiobates M{sub 4} (Nb{sup v}O){sub 2} (Si{sub 8}O{sub 21}) (M=Rb and Cs) show efficient niobate luminescence at room temperature. The siliconiobate Cs{sub 8}Nb{sub 10}O{sub 23}square(Si{sub 3}O{sub 9}){sub 2}, however, does not show efficient luminescence; nor does the barium substituted analog. These results are discussed in relation to the crystal structure. The efficient luminescence is due to the niobyl (Nb{sup v}O) group. Efficient luminescence from the niobate complex is only to be expected if the lowest absorption band is situated at about 40.000 cm{sup -1} or higher.
The siliconiobates M{sub 4} (Nb{sup v}O){sub 2} (Si{sub 8}O{sub 21}) (M=Rb and Cs) show efficient niobate luminescence at room temperature. The siliconiobate Cs{sub 8}Nb{sub 10}O{sub 23}square(Si{sub 3}O{sub 9}){sub 2}, however, does not show efficient luminescence; nor does the barium substituted analog. These results are discussed in relation to the crystal structure. The efficient luminescence is due to the niobyl (Nb{sup v}O) group. Efficient luminescence from the niobate complex is only to be expected if the lowest absorption band is situated at about 40.000 cm{sup -1} or higher.