Citation: Li Hui, Li Yan, Liang Yaqin. Synthesis of Ba_xWO₄-Sr_(0.985-x)MoO₄:0.01Sm³⁺ Red Phosphors by Molten Salt Method and Their Luminescence Performance[J]. Chemistry, ;2016, 79(5): 425-429. shu

Synthesis of Ba_xWO₄-Sr_(0.985-x)MoO₄:0.01Sm³⁺ Red Phosphors by Molten Salt Method and Their Luminescence Performance

1.
Department of Chemistry, Changzhi University, Changzhi 046011

Corresponding author: Li Yan,
Received Date: 29 September 2015
Available Online: 27 November 2015
Fund Project:

A series of Ba_xWO₄-Sr_(0.985-x)MoO₄: 0.01Sm³⁺ red phosphors were synthesized by molten salt method with different calcining temperatures, and their luminescence properties were investigated for their application in white light-emitting diodes (WLEDs). The phase structure, luminescence properties and micro-morphology of the as-synthesized powders were characterized by XRD, PL and SEM, respectively. The influences of the different ratios of Ba²⁺ and Sr²⁺ and the different calcining temperatures on the phase structure, luminescence properties and micro-morphology of the powders were studied. The results showed the phosphors have pure phase of tetragonal structure, good luminescent properties, and good micro-morphology synthesized under the optimum calcining condition of temperature 900℃, holding time 4h and the Ba/Sr ratio of 7:2.85. The emission peaks of the phosphors locate at 565nm, 602nm, and 648nm under exciting of near ultraviolet light (404 nm), So the synthesized phosphors may be a potential luminescent material for LED applications.
- Photoluminescence,
- Ba_xWO₄-Sr_(0.985-x)MoO₄:0.01Sm³⁺,
- Molten salt method,
- White light-emitting diodes
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沈阳化工大学材料科学与工程学院沈阳 110142

Synthesis of BaxWO4-Sr(0.985-x)MoO4:0.01Sm3+ Red Phosphors by Molten Salt Method and Their Luminescence Performance

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通讯作者: 陈斌, bchen63@163.com

Synthesis of Ba_xWO₄-Sr_(0.985-x)MoO₄:0.01Sm³⁺ Red Phosphors by Molten Salt Method and Their Luminescence Performance