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學校名稱輔仁大學
系所名稱物理學系
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學號493326087
研究生(中)凃耀宗
研究生(英)Yao Tsung Tu
論文名稱(中)釩碲鋇氧化物玻璃結構之紅外光譜研究
論文名稱(英)Structural Study of Vanadium Tellurium Barium Oxide Glasses by Infrared Spectroscopy
其他題名
指導教授(中)梁君致
指導教授(英)J. Liang
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學位類別碩士
畢業學年度94
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語文別中文
關鍵字(中)釩碲鋇氧化物玻璃 紅外光譜
關鍵字(英)Vanadium-tellurium-barium oxide glass Infrared spectroscopy
摘要(中)釩碲鋇氧化物玻璃在中紅外光區存在穿透帶,其截止頻率在短波長約為6000 cm-1,在長波長約為2000 cm-1。本論文以常溫紅外光譜研究釩碲鋇氧化物玻璃,探討由成份改變而產生的結構變化。實驗結果發現,隨著氧化鋇在玻璃成份的增加,氧化釩會從五配位的VO5結構轉變為四配位的VO4結構,而碲仍維持在三配位TeO3結構。在紅外光穿透光譜對於OH一離子群的吸收峰位置的觀察,得到樣品抗水性的比較,系列一的樣品中以70V2O5-15TeO2-15BaO玻璃抗水性較差,而系列二的樣品中則以40V2O5-20TeO2-40 BaO玻璃的抗水性較好。此外,本實驗室目前所用的高溫反射附件,在高溫下會產生源於附件本身的反射峰,嚴重影響變溫反射光譜的量測結果,亟須找出發生的原因並加以改善。
摘要(英)Vanadium-tellurium-barium oxide glasses (VTBOG) exhibit infrared cut-off frequencies in the midinfrared spectral range for short and long wavelengths near 6,000 cm-1 and 2,000 cm-1, respectively. Structure of the VTBOG in dependence of the composition was studied by infrared spectroscopy at room temperature. Experimental results deduced from the reflectance reveal that with the increase in the BaO content the five-coordinate VO5 structure transforms gradually into the four-coordinate VO4 structure, whilst the three-coordinate TeO3 structure remains nearly unchanged. In the study of the OH- absorption peaking at 3440cm-1 it is found that, among samples studied, the 70V2O5-15TeO2-15BaO glass in sample series I exhibits the highest hydrophilicity and the 40V2O5-20TeO2-40BaO one in sample series II displays the best hydrophobicity. In addition, peaks probably arising from the reflectance set employed emerge in the spectral range of interest at high temperatures. It is necessary to find the origin and to remove this artifact in order to obtain unambiguous information from the temperature dependent infrared reflectance.
論文目次中文摘要 i 英文摘要 ii 目錄 iii 圖目錄 v 表目錄 vii 第一章 緒論 1 第二章 紅外光譜理論 6  2-1 紅外線吸收之選擇定則 6  2-2 剩餘射線帶 ( Reststrahlen Band ) 7  2-3 Kramers-Kronig Transformation 10  2-4 吸收光譜 12 第三章 實驗儀器 13  3-1紅外光實驗儀器設備 13   3-1-1 光源 13   3-1-2 光圈 15   3-1-3 邁克遜干涉儀及分光片 15   3-1-4 氦氖雷射及其檢測器 16   3-1-5 紅外線檢測器 (IR Detector) 16   3-1-6 紅外光變角度反射附件 16  3-2紅外光高溫裝置簡介 18 第四章 實驗結果與討論 21  4-1 樣品的成份與處理 21  4-2 常溫紅外光穿透光譜 23 4-3 紅外吸收與反射光譜 27  4-4 常溫紅外光反射光譜 31 4-5 高溫紅外光反射光譜 41 第五章 結論 52 參考文獻 54
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