跳到主要內容

簡易檢索 / 詳目顯示

回結果列表
研究生： 林皇志
Huang-Chih Lin
論文名稱： 以CZ法生長鎂釕雙摻鈮酸鋰單晶
MgO and RuO2 doped lithium niobate single crystals were grown by the Czochralski method.
指導教授： 陳志臣
Jyh-Chen Chen
口試委員:
學位類別： 碩士
Master
系所名稱： 工學院 - 機械工程學系
Department of Mechanical Engineering
畢業學年度： 97
語文別： 中文
論文頁數： 68
中文關鍵詞： 釕 、鎂 、鈮酸鋰 、柴氏長晶法
外文關鍵詞： CZ, CLN, MgO, RuO2
相關次數： 點閱：17  下載：0 
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報

    • 鈮酸鋰晶體是近來最常被研究與應用的光電材料，它可以因不同元素的摻雜而使其有不同優異地光學性質表現，但鈮酸鋰在光學的應用上，在高功率能量雷射下會因晶體折射率變化而使入射能量大量發散(我們稱此現象為光損傷)，進而使其在光學上地應用受到很大的侷限，故近來大量文獻探討以Mg、Zn等元素多摻其他雜質，使其在不同光學應用上可以因光損傷的改善而得到更廣泛的應用。在眾多光學應用的研究上，改善光折變性質的摻雜元素因為全像儲存的發現而被大量的探討，其中摻釕鈮酸鋰因為有兩個不同的能階可以被應用於非揮發性全像儲存且其光折變性質優異，是近來備受關注的光折變晶體。本研究希望可以藉由摻雜鎂元素得到擁有高抗光損傷性質的鎂釕雙摻鈮酸鋰。
    本研究以自行架設的柴氏長晶系統生長鎂釕雙摻鈮酸鋰，我們成功生長出不同配比的鎂釕雙摻鈮酸鋰，其品質優良、等直徑且無裂痕，晶體直徑約35mm，長度約為45mm左右。經由ICP的檢測發現鎂元素的摻雜有助於改善釕元素在晶體內的分布，而從UV-VIS的檢測得知鎂釕雙摻鈮酸鋰依然保有摻釕鈮酸鋰的兩個能階，可使其應用於非揮發性全像儲存上。我們也藉由氧化反應來了解釕離子三種型態Ru3+、Ru4+、Ru5+對Mg:Ru:CLN的影響與其機制，並以VTE法製備近化學計量比的鎂釕雙摻鈮酸鋰，最後藉由光損傷檢測得知摻雜5mol%鎂的鎂釕雙摻鈮酸鋰可擁有高達800W/cm2的高光損傷閥值可以使其在工業上得到更廣泛的應用。

    Lithium niobate (LiNbO3) single crystal is one of the most widely used electro-optical materials, because the crystals are easily grown to large dimensions and with high optical uniformity. However, the low optical damage resistance that originated by light-induced refractive index changes restricts their industrial application. Incorporating optical damage resistance dopants (ODRD), such as MgO, ZnO provides potential ways to overcome the shortages. All of the optical applications of LiNbO3, photorefractive dopants are of high interest for holographic data storage. The Ru:LiNbO3 is one of the important holographic storage media because of its good photorefractive properties and non-volatility. In this work, Mg:Ru:LiNbO3 was grown for improving their optical damage resistance.
    The Mg:Ru:LiNbO3 crystal was grown by the Czochralski method from a congruent melt composition. The as-grown crystal was crack-free and uni-diameter with the size of φ35mm×45mm. We discover that non-uniform distribution of Ru ion in the grown crystal has been improved as the MgO dopants. After UV-VIS spectrum detected, the Mg:Ru:LiNbO3 crystal also had two different absorption peak that can be considered a good candidate to be used for nonvolatile holographic storage. The effect of post treatment on the optical properties of Mg:Ru:LiNbO3 is also studied. Magnesium (Mg)-Ruthenium (Ru)-doped near-stoichiometric lithium niobate crystals (Mg:Ru:SLN) were prepared by the vapor transport equilibration (VTE) technique. The crystal also exhibites free light-induced scattering at the recording power density of I0 =800 W/cm2, which are favorable for industrial application.

    摘要Ι AbstractII 致謝III 目錄IV 圖目錄VI 表目錄IX 符號說明X 第一章 緒論1 1-1前言1 1-2鈮酸鋰晶體簡介2 1-3文獻回顧2 1-4研究動機與目的5 第二章 實驗流程與設備簡介10 2-1實驗流程10 2-1-1粉末配置10 2-1-2晶體生長11 2-1-3切割、研磨拋光、退火、極化與VTE 處理13 2-2晶體檢測15 第三章 結果與討論26 3-1鎂、釕雙摻鈮酸鋰晶體生長26 3-2鎂、釕雙摻鈮酸鋰晶體性質28 3-2-1材料檢測28 3-2-2光學檢測30 3-3以VTE法製備鎂、釕雙摻近化學計量比鈮酸鋰33 第四章 結論52 參考文獻54

    1. W. H. Zachariasen, S. N. Vid-Ada, Oslo, Mat. Naturv. 4(1928).
    2. P. Lerner, C. Legras and J.P. Duman, Stoechiometric desmonocristaux -deMetaniobate delithium, J. Cryst. Growth 3, 231(1968).
    3. P. K. Gallagher, H.M. O’Bryan, Characterization of LiNbO3 by dilatometry and DTA, J. Am. Ceram. Soc. 68 , 147(1985).
    4. H. D. Megaw, A note on the structure of lithium niobate, Acta Crystallogr. A24 ,583 (1968).
    5. L. Arizmendi, Photonic applications of lithium niobate crystals, phys. stat. sol. 201, 253–283(2004).
    6. L. O. Svaasand, M. Eriksrud, G. Nakken, and A. P. Grande, Solid-solution range of LiNbO3, J. Cryst. Growth 22, 230 (1974).
    7. H. M. O’Bryan, P. K. Gallagher, and C. D. Brandle, Congruent composition and Li-rich phase boundary of LiNbO3, J. Am. Ceram. Soc. 68 (9), 493 (1985).
    8. A. Ashkin, G. Boyd, J. Dziedzic, R. Smith, A. Ballman, J. Levinstein, K. Nassau, Optically-induced refractive index inhomogeneities in LiNbO3 and LiTaO3, Appl. Phys. Lett. 9 (1) , 72–74(1966).
    9. L. Sun, J. Wang, Q. Lv, B. Liu, F. Guo, R. Wang, W. Cai, Y. Xu, L. Zhao, Defect structure and optical damage resistance of In:Mg:Fe: LiNbO3 crystals with various Li/Nb ratios, J. Cryst. Growth 297, 199-203 (2006).
    10. D.A. Bryan, R. Gerson, H.E. Tomaschke, Increased optical damage resistance in lithium niobate, Appl. Phys. Lett. 44 , 847-849(1984).
    11. N. Iyi, Y. Yajima, K. Kitamura, Defect Structure Model of MgO-Doped LiNbO3, J. Solid State Chem. 118, 148-152(1995).
    12. Y. Furukawa, K. Kitamura, S. Takekawa, K. Niwa, Y. Yajima, N. Iyi, I. Mnushkina, P. Guggenheim, J.M. Martin, The correlation of MgO-doped near-stoichiometric LiNbO3 composition to the defect structure, J. Cryst. Growth 211, 230-236(2000).
    13. T. R. Volk, Optical-damage-resistant LiNbO3:Zn crystal, OPTICS LETTERS 15, 996-998 (1990).
    14. C.B. Tsai, W.T. Hsu, M.D. Shih, Y.Y. Lin, Y.C. Huang, C.K. Hsieh, W.C. Hsu, R.T. Hsu, C.W. Lan, Growth and characterizations of ZnO-doped near-stoichiometric
    LiNbO3 crystals by zone-leveling Czochralski method, J. Cryst. Growth 289, 145-150 (2006).
    15. Y. Kong, J. Wen, and H. Wang, New doped lithium niobate crystal with high resistance to photorefraction—LiNbO3:In, Appl. Phys. Lett. 66,280-281(1995).
    16. Y. Kong, S. Liu, Y. Zhao, Hongde Liu, Shaolin Chen, and Jingjun Xu, Highly optical damage resistant crystal: Zirconium-oxide-doped lithium niobate, Appl. Phys. Lett. 91, 081908-1 - 081908-3(2007).
    17. 江昌鴻, 摻釕鈮酸鋰單晶生長及其特性之研究,博士論文，國立中央大學機械工程研究所, 2007.
    18. Y. Fan, H. Li, F. Guo, Y. Xu, L. Zhao, Structure and nonvolatile holographic recording of Mg:Ce:Cu: LiNbO3 crystals, Optics Communications 278, 413–417(2007).
    19. Y. Fan, H. Li, L. Zhao, Investigation on structure and photorefractive properties of Mg:Ce:Cu:LiNbO3 crystals with various [Li]/[Nb] ratios, Optical Materials 30, 492–496(2007).
    20. D. Ma, B. Wang, R. Wang, Y.Wei, H. C. Liu, H.Wang, Growth and optical properties of Zn:Ce:Cu: LiNbO3 single crystals, Solid-State Electronics 52, 644–648(2008).
    21. Z. Wei, G. Qiang, and X. Yuheng, Defect structure and optical fixing holographic storage of Mg:Mn:Fe: LiNbO3 crystals, Cryst. Res. Technol. 43, 526-530 (2008).
    22. X. Sun, S. Luo, J. Wang, Y. Jiang and H. Shi, Improvement of blue photorefractive properties in In-doped LiNbO3 : Fe : Cu crystals, J. Phys. D: Appl. Phys. 42, 1-7 (2009).
    23. Z. Xu, Growth and photorefractive properties of Mg:Ce:Fe: LiNbO3 crystals, Optical Materials 30, 920–923 (2008).
    24. R. Fujimura, T. Shimura, and K.Kuroda, Nonvolatile holographic recording in Ruand Fe doped LiNbO3 crystal, Trends in Optics and Phonics Series 87,660(2003).
    25. X. Xuewu, L. Xinan, L. Minghua, S. Solanki, C. Tow-Chong, Two-color nonvolatile holographic recording in Bridgman-grown Ru:LiNbO3 crystals, J. Cryst. Growth 310, 1976 -1980 (2008).
    26. 胡明理, Zn:LiNbO3 單晶生長及其特性研究,博士論文，國立中央大學光電科學研究所, 2004.
    27. 鄭文翔, 以CZ法生長摻鎂鈮酸鋰單晶,碩士論文，國立中央大學機械工程研究所, 2008.
    28. 陳智勇, 雷射柴氏生長鈮酸鋰塊晶之研究分析,碩士論文，國立中央大學機械工程研究所, 2004.
    29. A. Bossi, A. Cattalani, F. Gabrassi, G. Petrini and L. Zanderighi, The interaction of ruthenium with a MgO matrix, Journal of Thermal Analysis 26, 81-86(1983).
    30. Y. Zhi, D. Liu, Y. Zhou, Z. Chai, and L. Liu, Electrochromism accompanying ferroelectric domain inversion in congruent RuO2: LiNbO3 crystal, OPTICS EXPRESS 13, 10172-10181(2005).
    31. 柴志方, 劉德安, 職亞楠, 郭袁俊, 劉立人, LiNbO3:Ru 晶體的光折變特性研究, 光學學報 26, 1245-1249(2005).
    32. Y.L. Chen, J.P. Wen, Y.F. Kong, S.L. Chen, W.L. Zhang, J.J. Xu, G.Y. Zhang, Effect of Li diffusion on the composition of LiNbO3 at high temperature, J. Cryst. Growth 242, 400–404(2002).
    33. X. Liang, X. Xuewu, C. Tow-Chong, Y. Shaoning, Y. Fengliang, T. Y. Soon, Lithium in-diffusion treatment of thick LiNbO3 crystals by the vapor transport equilibration method, J. Cryst. Growth 260, 143–147(2004).

    QR CODE
    :::