Low temperature synthesis and photoluminescent properties of CaMoO4:Eu3+ red phosphor with uniform micro-assemblies
Low temperature synthesis and photoluminescent properties of CaMoO4:Eu3+ red phosphor with uniform micro-assemblies
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DOI：
10.1016/j.materresbull.2011.05.029
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发表时间：
2011-09
影响因子：
5.4
通讯作者：
Fang Yu;J. Zuo;Zhi Zhao;Chengying Jiang;Qing Yang
中科院分区：
文献类型：
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作者：
Fang Yu;J. Zuo;Zhi Zhao;Chengying Jiang;Qing Yang
采用简易水热法，在120℃下反应10h，成功地合成了具有均匀微组装的白钨矿掺杂CaMoO4红色荧光粉。通过小尺寸纳米结构组装了Eu3+掺杂的CaMoO4微结构，首次发现可以通过在原料溶液中滴入不同的碱来控制材料的形貌。用X射线衍射仪、场发射扫描电子显微镜、透射电子显微镜、高分辨电子显微镜和光致发光等技术对其结构、形貌和发光性能进行了表征和研究。发光研究证实，Eu3+离子已经有效地掺杂到CaMoO4纳米结构中。成功制备的Eu3+掺杂CaMoO4纳米结构在近紫外光芯片白光发光二极管(WLED)的技术应用中具有潜在的应用前景。
Scheelite-type Eu3+-doped CaMoO4red phosphor with uniform micro-assemblies has been successfully synthesized via a facile hydrothermal method at 120°C for 10h. The Eu3+-doped CaMoO4microstructures were assembled by small nanostructures and the morphology of materials was found to be manipulated by dropping different alkalis into the stock solution for the first time. The structure, morphology, and luminescent property were characterized and investigated by techniques of X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and photoluminescence (PL). The luminescent investigations confirmed that the Eu3+ions have been effectively doped into CaMoO4nanostructures. The successfully achieved Eu3+-doped CaMoO4nanostructures will be potential in technological applications on near UV chip-based white light emitting diode (WLED).