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Photoluminescent properties of Dy3+ in MgO-Ga2O3-SiO2 nano-glass-ceramic prepared by sol–gel method

✍ Scribed by Lixin Yu; Hai Liu

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
250 KB
Volume
406
Category
Article
ISSN
0921-4526

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✦ Synopsis

The MgO-Ga 2 O 3 -SiO 2 (MGS) glass and glass-ceramic (GC) containing MgGa 2 O 4 nanocrystals and Dy 3 þ ions were prepared by a simple sol-gel method. MgGa 2 O 4 nanocrystals in MgO-Ga 2 O 3 -SiO 2 GC formed when the heating temperature reached 800 1C. The energy transfer from MgGa 2 O 4 nanocrystals to Dy 3 þ was observed. It is important that the strong white light emission is observed corresponding to the excitation band gap of MgGa 2 O 4 nanocrystals. As exciting Dy 3 þ ions, only weak yellow and blue emissions were observed.

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