Study on a new green phosphor Ca12Al14O32Cl2: Tb3+ derived from Tb-doped Ca-Al layered double hydroxide
作者： Yufeng Chen , Xiaoqing Wang , Yao Bao
DOI: 10.1016/J.CAP.2016.11.003
关键词:
摘要: Abstract A new green phosphor Ca12Al14O32Cl2: Tb3+ derived from Tb-doped Ca-Al layered double hydroxide (Tb-doped CaAl-LDH) was prepared through phase transition route. The X-ray diffraction measurement results revealed that the CaAl-LDH transformed into Ca12Al14O32Cl2:Tb3+ at 600 °C. With temperature varying 600, 800–1000 °C, crystallinity of gradually improved. Compositional analyses suggested chemical formula estimated to be Ca12Al13.52Tb0.48O32Cl2. Ca12Al13.52Tb0.48O32Cl2 can efficiently excited by near ultraviolet light and show strong emissions attributed 5D4→7FJ (J = 5, 6) Tb3+. present may a promising candidate for applied in LED.
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