臺灣博碩士論文加值系統

釩碲鋇三元氧化物玻璃(V2O5-TeO2-BaO glass)是一種非搭配傳統玻璃結網子的含V2O5氧化物玻璃，目前已經有其導電性研究[1-4]，但尚無針對其成分與結構之間關聯性的報導。本論文的重點即在於探討此三元氧化物玻璃之結構變化與其相對組成成分之間的關係。
本實驗對六種钒碲鋇氧化物玻璃樣品測量拉曼散射光譜，通過觀察此三元氧化物玻璃結構中的拉曼振動譜峰隨不同濃度的變化，得出Te原子的TeO4、TeO3+1和TeO3的配位數變化，和V原子的VO5和VO4的配位數同時存在。並觀察到VO5 、VO4 、TeO4、TeO3+1和TeO3 的五種結構的振動譜峰以及TeO4與TeO3的三種cluster結構的振動譜峰。

V2O5-TeO2-BaO ternary oxide glasses (VTB glasses) are electrical conducting glasses. In the past, much of the work has been devoted to the study of the transport properties of the VTB glasses. On the contrary, less attention has been paid to the structural analysis. In this context, the main purpose of this work is to study the structural variation in connection with the composition of the ternary oxide glasses.
Six V2O5-TeO2-BaO ternary oxide glasses were studied by Raman spectroscopy. The coordination of tellurium and vanadium has been deduced from the comparison of the constituent content of the VTB glasses and the Raman peaks. Raman spectra show both VO4 tetrahedra and VO5 bipyramids being present in the VTB glasses. By increasing V2O5 and BaO concentration, the coordination of tellurium changes from 4 to 3+1 and then to 3. Moreover, five vibrations corresponding to VO5, VO4, TeO4, TeO3+1, and TeO3 structural units and three vibrational modes of TeO4 and TeO3 cluster structures have been observed.

目錄
第一章 緒論 1
1-1 玻璃的形成 2
1-2 玻璃成分的分類 4
1-3 釩碲鋇氧化物玻璃的基本結構 4
第二章 拉曼散射 9
2-1 光散射 9
2-2 拉曼散射之古典電磁學理論基礎 12
2-3 拉曼散射之微觀描述 16
第三章 拉曼實驗裝置與樣品特性 20
3-1 光路 20
3-2 氬離子氣體雷射 23
3-3 Jobin Yvon U1000 型雙光柵單色儀 27
3-4 電荷耦合元件(CCD) 30
第四章 結果與討論 33
4-1拉曼常溫光譜 33
4-2 VO5 雙三角錐和VO4 三角錐結構拉曼的V-O1 stretching振動譜峰
42
4-3 TeO3 三角錐結構的拉曼振動譜峰 46
4-4 TeO4 雙三角錐結構的antisymmetric vibration modes 49
4-5 TeO4 雙三角錐結構的symmetric vibration modes 52
4-6 TeO4雙三角錐和TeO3三角錐結構的cluster拉曼振動譜峰 56
第五章 總結 58
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