期刊
MATERIALS LETTERS
卷 61, 期 11-12, 页码 2200-2203出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2006.08.049
关键词
oxyfluoride glass ceramics; Er3+/Tm3+/Yb3+ tridoped; upconversion luminescence; multicolor displays
Er3+/Tm3+/Yb3+ tricloped oxyfluoride glass ceramics was synthesized in a general way. Under 980 nm LD pumping, intense red, green and blue upconversion was obtained. And with those primary colors, multicolor luminescence was observed in oxyfluoride glass ceramics with various dopant concentrations. The red and green upconversion is consistent with F-4(9/2) -> I-4(15/2) and H-2(11/2), S-4(3/2) -> I-4(15/2) transition of Er3+ respectively. While the blue upconversion originates from (1)G(4) -> H-3(6) transition of Tm3+. This is similar to that in Er3+/Yb3+ and/or Tm3+/Yb3+ codoped glass ceramics. However the upconversion of Tm3+ is enhanced by the energy transfer between Er3+ and Tm3+. (c) 2006 Published by Elsevier B.V.
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