Preparation and photoluminescent properties of Eu(III) containing M-layered silicates (M = Li, Na, K, Rb, Cs)

被引：0
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作者：
Sun Jin Kim
Gihoon Lee
Yoon Kyong Ryu
Byung-Yong Yu
机构：
[1] Korea Institute of Science and Technology,Nano
[2] Korea Institute of Science and Technology,Materials Research Center
[3] Korea University,Nano
来源：
Research on Chemical Intermediates | 2012年 / 38卷
关键词：
Layered silicates; Europium; Cations; Photoluminescence; Ion-exchange;
D O I：
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中图分类号：
学科分类号：
摘要：
Eu(III) containing M-layered silicates (M = Li, Na, K, Rb, Cs) were prepared using the layered silicates, such as ilerite, magadiite, and kenyaite, as a host matrix and the luminescence properties were investigated. The results from the luminescence measurements indicated that the luminescence properties in the EuM-layered silicate system depended strongly on the types of host matrices and alkali cations. Among the EuM-layered silicates, EuM-ilerite exhibited the strongest luminescence intensity for all alkali cations, whereas EuM-kenyaite exhibited relatively weak luminescence intensity. The luminescence intensity was significantly increased by heat treatment at high temperature, mainly due to the phase change of host matrices and the presence of alkali cations in the host matrices. Particularly, the luminescence intensity of EuM-layered silicate calcined at 1,000 °C increased with the increase of the ion size of alkali cations.
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页码：1191 / 1202
页数：11
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