期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 100, 期 7, 页码 2901-2913出版社
WILEY
DOI: 10.1111/jace.14807
关键词
Eu3+ and Eu2+; glass-ceramics; heat treatment; NaYF4 nanocrystals; W-LED quantum efficiency
资金
- National Natural Science Foundation of China [61368007, 61265004, 51272097]
Eu-doped transparent oxyfluoride aluminosilicate glass was prepared by controlling with Al codoping of melt-quenched glass fabricated under air atmosphere. In the presence of Al input, the photoluminescence emission spectra under 393 nm excitation shows a blue shift by adjusting the ratio of Eu3+ and Eu2+. After heat treatment of glass, the ratio of Eu3+ and Eu2+ of luminescence emission were changed by controlling treatment temperature. The PL intensity of Eu3+ and Eu2+ ions in the glass-ceramics (GC) was much stronger than in the precursor glass (PG). The possible mechanism responsible for color tuneability of the ratio of Eu3+ and Eu2+ doped was discussed.
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