X-ray absorption near-edge spectroscopy study of photoluminescent Ca2.955Sc2-xAlxSi3O12:Ce3+ green phosphors

Yun Fang Wu, Jau Wern Chiou, Yung Tang Nien, Chen Lin Yeh, In Gann Chen, Jyh Fu Lee

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)


Al3+ co-doped Ca2.955Sc2Si3O12:Ce3+ green phosphors were systematically investigated using X-ray absorption near-edge spectroscopy (XANES) to understand the influence of Al3+ incorporation on photoluminescence behavior. XANES analysis was used to confirm the doping site of Al atoms in the Ca2.955Sc2Si3O12:Ce3+ host, the valence state of Ce atoms, the symmetry around Ca and Ce atoms, and the bonding modes of oxygen atoms with cation atoms in the as-prepared Ca2.955Sc2-xAlxSi3O12:Ce3+ (CSAS:Ce). XANES results indicate that Al3+ occupies the Sc3+ sites and stabilizes the crystal structure of the host material. Furthermore, Al3+ can effectively inhibit the oxidization of Ce3+ to Ce4+, which enhances the photoluminescence of CSAS:Ce green phosphors.

頁(從 - 到)4538-4543
期刊Ceramics International
出版狀態Published - 2015 四月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 陶瓷和複合材料
  • 製程化學與技術
  • 表面、塗料和薄膜
  • 材料化學


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