Photoluminescence of bulks and thin films of Eu3+-doped organic/inorganic hybrids

被引：0

作者：

Pecoraro, E. ^{[1
,2
]}

Sá Ferreira, R.A. ^{[1
]}

Molina, C. ^{[2
]}

Ribeiro, S.J.L. ^{[2
]}

Messsaddeq, Y. ^{[2
]}

Carlos, L.D. ^{[1
]}

机构：

[1] Department of Physics, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal

[2] Institute of Chemistry-UNESP, CP 355, Araraquara, SP 14801-970, Brazil

来源：

Journal of Alloys and Compounds | 1600年 / 451卷 / 1-2期

关键词：

Organic-inorganic hybrids formed by polyether-based chains grafted to both ends to a siliceous backbone through urea cross-linkages ({single bond}NHC({double bond; long}O)NH{single bond}); named di-ureasil; have been used as host for incorporation of Eu3+ in the form of EuCl3. The bulks and the thin films; both optically transparent; were characterized by excitation; absorption and emission spectroscopy. Photoluminescence results point out that the Eu3+ ions occupy; at least; two distinct local environments. Besides; the processing method (thin films or bulks) has influence on the energy levels of the hybrid host probably due to the lower degree of organization of the thin films structure. © 2007 Elsevier B.V. All rights reserved;

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摘要：

Journal article (JA)

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页码：136 / 139