稀土掺杂ZrO2纳米粉的制备及光学性能的研究

论文总字数：29935字

目 录

1. 绪论················································1

1.1 研究背景及意义·························································1

1.2 光致发光智能化检测方面的国内外的研究现状·······························1

1.3 ZrO₂的性质及其应用······················································2

1.4 稀土掺杂纳米ZrO₂粉体的制备方法及研究现状·······························3

1.4.1 溶胶-凝胶法······················································3

1.4.2 共沉淀法·························································4

1.4.3 水热法···························································5

1.4.4 金属醇盐法·······················································5

1.4.5 微波水热法·······················································6

1.4.6 其它方法·························································6

1.5 稀土掺杂ZrO₂发光机制的研究现状·········································6

1.6 稀土掺杂ZrO₂纳米材料在光致发光检测方面的研究前景·······················7

1.7 研究内容·······························································7

1. 实验部分············································9

2.1 实验药品·······························································9

2.2 实验仪器·······························································9

2.3 样品表征仪器··························································11

2.3.1 X射线衍射仪（XRD）···············································11

2.3.2 扫描电子显微镜（SEM）············································12

2.3.3 透射电子显微镜（TEM）············································13

2.3.4 拉曼光谱/光致发光光谱（Raman/PL spectra）························13

2.4 实验方案··································································14

2.4.1 纯ZrO₂纳米粉体的制备············································14

2.4.2 YSZ纳米粉体的制备···············································15

2.4.3 YSZ：Er³ 纳米粉体的制备··········································16

2.4.4 YSZ：Er³ /Sm³ 纳米粉体的制备······································17

1. 稀土掺杂ZrO₂纳米粉体的组织结构研究·················18

3.1 纯ZrO₂纳米粉体的组织结构研究··········································18

3.2 YSZ纳米粉体的组织结构研究·············································20

3.3 YSZ：Er³ 纳米粉体的组织结构研究·········································22

3.4 YSZ：Er³ /Sm³ 纳米粉体的组织结构研究····································24

3.5 本章小结······························································25

1. 稀土掺杂YSZ光学性能的研究·························27

4.1 稀土掺杂YSZ拉曼光谱的研究············································27

4.2 稀土掺杂YSZ光致发光性能的研究········································28

4.3 稀土掺杂YSZ光致发光机制的研究········································30

4.4 本章小结······························································31

1. 总结···············································32

参考文献··················································33

致谢······················································35

稀土掺杂ZrO₂纳米粉的制备及光学性能的研究

黄珂

，China

Abstract：The luminous intelligent detection is of great application value in solving the invalidation problem of materials．It is important and useful to detect the performance and predict the invalidation problem of materials．The luminous intelligent detection uses a specific wavelength of laser to excite potoluminescence materials and then realize the early prediction of structural material properties by determine the damage degree of materials acrroding to the emission spectra to reduce or even avoid unnecessary risks．However，the difficulty of using spectra to detect the invalidation problem of materials is how to obtain a single visible spectrum．Due to the low phonon energy of ZrO₂，it is a kind of potential photoluminescent material，which can provide a stable luminous place for the luminescence center．Given this information,this paper prepared pure ZrO₂ and doped ZrO₂ with different rare earth powder by hydrothermal method and research the effects on the crystal，microstructure and optical properties of ZrO₂ powders．The experimental results show that the rare earth has a certain effect on the crystal structure of zirconia and the addition of rare earth changes the size and shape of the crystal particles．The ZrO₂ doped Y³ and Er³ can emit a single bright green light under the excitation of 325nm laser，which is of great significance to the study of the luminous intelligent detection．

Key words：ZrO₂；rare-earth doped；hydrothermal method；optical properties

1. 绪论

1.1 研究背景及意义

剩余内容已隐藏，请支付后下载全文，论文总字数：29935字

相关图片展示：