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Influence of the Eu 2+ on the Silver Aggregates Formation in Ag + – Na + Ion‐Exchanged Eu 3+ ‐Doped Sodium–Aluminosilicate Glasses
Author(s) -
Li Longji,
Yang Yong,
Zhou Dacheng,
Yang Zhengwen,
Xu Xuhui,
Qiu Jianbei
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12745
Subject(s) - europium , aluminosilicate , sodium aluminosilicate , divalent , ion , ion exchange , inorganic chemistry , doping , chemistry , sodium , analytical chemistry (journal) , materials science , catalysis , biochemistry , optoelectronics , organic chemistry , chromatography
Europium‐doping sodium–aluminosilicate glasses are prepared by melt‐quenching method, in which europium ions were spontaneously reduced from their trivalent to divalent state. The silver was introduced into glasses by Ag + – Na + ion exchange and the interactions between europium ions and silver species were investigated. Owing to energy transfer ( ET ) from Ag + /silver aggregates to Eu 3+ , significant enhancements of Eu 3+ emission were observed for 285/350‐nm excitation, respectively. The divalent europium ions promote the formation of silver aggregates in the process of ion exchange.