Fe³⁺ red phosphors based on lithium aluminates and an aluminum lithium oxyfluoride prepared from LiF as the Li Source

详细信息    查看全文

• 作者：Hide-aki Takahashi^a ; Hirotaka Takahashi^a ; Keisuke Watanabe^a ; Hiroko Kominami^b ; Kazuhiko Hara^c ; Yuta Matsushima^a ; ^{ymatsush@yz.yamagata-u.ac.jp}
• 关键词：Fe3+ ; Red phosphor ; LiAlO2 ; Al4LiO6F ; d-d Transition
• 刊名：Journal of Luminescence
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：182
• 期：Complete
• 页码：53-58
• 全文大小：3906 K
• 卷排序：182

文摘

The effects of LiF as the Li source were investigated on the properties of Fe3+ doped red phosphors. LiF had advantages on leading to different luminescent properties through the different host crystals. Excess LiF promoted the crystallization of metastable α-LiAlO2 up to 800 °C and enhanced the PL of γ-LiAlO2:Fe3+ above 800 °C with the flux effect. The wavelength of the red emission from Fe3+ became shorter in the order of γ-LiAlO2:Fe3+, α-LiAlO2:Fe3+ and Al4LiO6F:Fe3+.