Core–Shell Structure and Luminescence of SrMoO_4:Eu~(3+)(10%) Phosphors

• 作 者: Yanan Zhu Ganhong Zheng Zhenxiang Dai Lingyun Zhang Jingjing Mu
• 机 构: Anhui Key Laboratory of Information Materials and Devices,School of Physics and Materials Science,An
• 出 处: Journal of Materials Science & Technology
• 发表日期: 2016年12期
• 关键词: hydrothermal stirring luminescence systematically annealing ultraviolet Core Pho

SrMoO_4:Eu~(3+)(10%) phosphors were produced via hydrothermal synthesis and co-precipitation.We systematically analyzed how the morphology and luminescence properties of the phosphors were affected by the synthesis conditions,including the p H of the precursor solution,stirring speed,and postsintering temperature.The samples synthesized at p H = 8 and 9 were spindle-like rods with a core–shell structure.When the stirring speed increased to Vs = 150 r/min,the core–shell structure disappeared.Photoluminescence measurements indicated that the Sr Mo O4:Eu3+samples under ultraviolet radiation produced strong red emission centered at 616 nm.The luminescence properties were greatly affected by the p H,stirring during hydrothermal reaction,and use of post-annealing.The related mechansim is discussed.

SrMoO_4: Eu ~ (3 +) (10%) phosphors were produced via hydrothermal synthesis and co-precipitation. We systematically analyzed the the morphology and luminescence properties of the phosphors were affected by the synthesis conditions, including the p H of the precursor solution , stirring speed, and postsintering temperature. The samples synthesized at p H = 8 and 9 were spindle-like rods with a core-shell structure. When the stirring speed increased to Vs = 150 r / min, the core-shell structure disappeared. Photoluminescence measurements indicated that the Sr Mo O4: Eu3 + samples under ultraviolet radiation produced strong red emission centered at 616 nm. The luminescence properties were greatly affected by the p H, stirring during hydrothermal reaction, and use of post-annealing. Related mechansim is discussed.