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摘要：本文中，利用高温固相法来制备出含有稀土元素Eu3+、Tb3+、Ce3+三掺杂的LaBrO层状荧光粉前驱体。利用苯甲酸钠进行插层实验，在正丁醇中通过超声清洗机进行剥离，制备出含有正电荷的稀土氧化物纳米片发光材料。利用XRD、TEM、SEM和发射和激发光谱，对荧光体的物相、形貌和发光性能进行了表征与分析。LaBrO:Re3+(xEu3+,yCe3+,zTb3+) 晶型良好，当x=5%，y=5%，z=0.5% 时，在326nm激发时的发射光谱接近于白光。经过插层、剥离实验后，可得到550nm纳米片，纳米片保持原来LaBrO结构，稳定性好。经过EPD实验后，得到发白光的荧光玻璃。48947
毕业论文关键词：荧光粉；插层；剥离；荧光玻璃
The research on the preparation and properties of LaBrO nanostructured luminescent materials
Abstract：In this paper, the tri-doped Eu3+、Tb3+、Ce3+ LaBrO phosphor have been prepared with high temperature solid state reaction. The saturated sodium benzoate wais employed to intercalate the interlayer of LaBrO, and the inserted n-butyl alcohol make the nanosheets cleave. The phases、morphology and luminescent preperties of the products are investigated by XRD、SEM、TEM and FL. The results of the spectral analysis show that LaBrO:Re3+(xEu3+, yCe3+, zTb3+) has a good crystalline phase and emission spectrum close to white light at 326nm (x=5%, y=5%, z=0.5%). The result of XRD show that the prepared sample had good crystalline structure, and had no obvious peaks and good structure. The result of SEM show that the sample particles uniformly dispersed. The result of TEM show that the nano slice is a comparatively neat and well distributed layer structure. The nanosheets coated on glass sheets by uniform rubber machine, under the ultraviolet light could see the luminescence.
KeyWords：Fluorescence powder; Intercalate; Stripping; Fluorescent glass
目 录
1 绪论 1
1.1 荧光粉材料 2
1.1.1 荧光粉的分类 2
1.1.2 荧光粉的制备方法 2
1.1.3 稀土发光材料 3
1.1.4 色品坐标、显色指数和色温 3
1.2 层状化合物 4
1.2.1 阴离子型层状材料 5
1.2.2 阳离子型层状化合物 5
1.2.2 中性层状化合物 5
1.2.3 剥离技术 5
1.3 纳米片 6
1.3.1 纳米片的制备工艺 6
1.3.2 自然沉降法 6
1.3.3 旋涂法 6
1.3.4 对流自组法 7
1.4选题思路 8
2 实验部分 9
2.1 实验原料及实验仪器 9
2.2 实验过程 10
2.2.1 LaBrO(xEu3+,yCe3+,zTb3+)纳米片的制备 10
2.2.2 LaBrO:Re3+层状材料的插层、剥离制备纳米片 11
2.2.3 LaBrO:Re3+纳米片氧化膜制备