Influence of the Eu2+ on the Silver Aggregates Formation in Ag+–Na+ Ion‐Exchanged Eu3+‐Doped Sodium–Aluminosilicate Glasses |
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Authors: | Longji Li Yong Yang Dacheng Zhou Zhengwen Yang Xuhui Xu Jianbei Qiu |
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Affiliation: | School of Materials Science and Engineering, Kunming University of Science and Technology, , Kunming, 650093 China |
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Abstract: | 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 Eu3+, significant enhancements of Eu3+ 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. |
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