The introduction of silver into the Eu3+-doped sodium–aluminosilicate glasses prepared by Ag+-Na+ ion exchange leads to the formation of different ionic silver species. Under 350nm excitation, effective enhancement of Eu3+ luminescence is ascribed to energy transfer (ET) from silver aggregates to Eu3+ and White light emission was realized by combining red light emission of Eu3+ with blue/green light emission of silver aggregates. The formation of silver aggregates such as Ag2+ was promoted by Eu2+ in the heat treatment process. The local field enhancement effect due to SPR of Ag NPs was not observed. Our research will help to understand the interaction between different types of Ag species and europium ions.
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Li et al. (2013) studied this question.
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