| 石英颗粒表面合成六棱柱状Mn~(2+)掺杂Zn_2SiO_4及光致发光性能研究 |
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| 引用本文： | 吴卫明,邓景泉,江锡顺. 石英颗粒表面合成六棱柱状Mn~(2+)掺杂Zn_2SiO_4及光致发光性能研究[J]. 兵器材料科学与工程, 2014, 0(2): 55-58 |
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| 作者姓名： | 吴卫明 邓景泉 江锡顺 |
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| 作者单位： | 滁州学院机械与电子工程学院; |
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| 基金项目： | 安徽高校省级科学研究项目(KJ2011Z272);滁州学院校级教研项目(2011jyy005);滁州学院优秀青年人才基金重点项目(2013RC007) |
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| 摘 要： | 以SiO2颗粒和Zn(CH3COO)2为原料,采用水热法在不锈钢反应釜中低温制备了Mn2+掺杂的Zn2SiO4荧光材料。利用X线衍射仪(XRD)、扫描电子显微镜(SEM)和荧光分光光度计对影响产物结构及发光性能的反应温度、反应时间、NH4OH质量分数等参数进行研究。结果表明:六棱柱状的ZnSiO4纳米颗粒可以在220℃的低温水热条件下获得,以该法制备的Mn2+掺杂ZnSiO4具有良好的光致发光性能,在220 nm紫外光激发下产生525 nm的绿色发光,并且发光强度随水热反应温度、时间以及NH4OH浓度改变而改变。
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| 关 键 词： | 水热法 锰掺杂硅酸锌 六棱柱晶体 光致发光 |
Synthesis and luminescence properties of hexagonal prism Mn~(2+) doped Zn_2SiO_4 on surface of quartz particles |
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| Abstract: | Mn2+doped Zn2SiO4phosphors were prepared by hydrothermal method using SiO2particles and Zn(CH3COO)2as raw materials in stainless-steel autoclaves. Effects of reaction temperature,time,and concentration of NH4OH on the structure and the luminescence properties of these products were studied with X-ray diffraction apparatus(XRD),scanning electron microscope(SEM) and fluorescence spectrum. Results show that hexagonal prism Zn2SiO4crystals can be achieved by hydrothermal method at 220 ℃. Mn2+doped Zn2SiO4has a luminescence band with the wavelength at about 525 nm under 220 nm excitation,and the luminescent intensity changes with the alteration of reaction time,temperature,and concentration of NH4OH. |
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| Keywords: | hydrothermal method Mn doped Zn2SiO4:hexagonal prism crystal photoluminescence |
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