Water-activated photoluminescence of europium(III) β-diketonate complex in a porous glass matrix

被引:0
|
作者
A. A. Petushkov
S. M. Shilov
M. V. Puzyk
V. N. Pak
机构
[1] Herzen State Pedagogical University,
来源
Technical Physics Letters | 2006年 / 32卷
关键词
81.05.-t; 78.55.-m;
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学科分类号
摘要
Europium(III) β-diketonate complex Eu(DBM)3 · phen (DBM = dibenzoylmethane, phen = 1,10-phenanthroline) have been encapsulated in a porous glass matrix by impregnating it with an acetone solution of the complex. Subsequent filling of the pore space with water leads to a significant increase in the intensity of photoluminescence from the deposited complex molecules. A key role in the unusual behavior of the system belongs to the coordination environment of Eu3+ that ensures screening of these ions from water molecules and increases the efficiency of indirect excitation of emission by increasing the rate of π → π* transitions in the ligand system in the presence of water condensed in the pores.
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页码:399 / 401
页数:2
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