Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 385, Issue -, Pages 95-99Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2013.11.017
Keywords
Glass; Ion exchange; Energy transfer; Silver nanoparticle; Terbium ions
Funding
- National Natural Science Foundation of China [51272097, 61265004, 61307111]
- Nature and Science Fund from Yunnan Province Ministry of Education [2011C13211708]
- National Natural Science Foundation for Youths of Yunnan [2012FD009]
Ask authors/readers for more resources
Different ionic silver species and Ag nanoparticles (Ag NPs) were prepared by Ag+-Na+ ion exchange method in Tb3+-doped sodium-aluminosilicate glasses, and the interaction between Ag species and Tb3+ ions was studied. Two excitation peaks centered at 280 nm and 375 nm which ascribed to Ag+ and Ag aggregates (Ag-2(+), Ag-3(+) ...) respectively were observed in as-made glasses. Owing to energy transfer (ET) from Ag+/silver aggregates to Tb3+, significant enhancements of Tb3+ emission were observed under certain excitation. After heat treatment, the results of absorption spectrum and TEM patterns revealed that silver nanoparticles (Ag NPs) with diameter of about 5 nm were formed in glasses, and it was found that the Ag NPs led to a significant enhancement in Tb3+ luminescence under 375 nm excitation. A possible mechanism of energy transfer from Ag species to Tb3+ ions was proposed. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available