https://scholars.lib.ntu.edu.tw/handle/123456789/61582
標題: | Growth and characterizations of ZnO-doped near-stoichiometric LiNbO3 crystals by zone-leveling Czochralski method | 作者: | Tsai, C.B. Hsu, W.T. Shih, M.D. Lin, Y.Y. Huang, Y.C. Hsieh, C.K. Hsu, W.C. Hsu, R.T. Lan, C.W. |
關鍵字: | A1. Defects;A1. Segregation;A2. Growth from solution;A2. Single crystal growth;B1. Lithium compounds;B1. Oxides;B2. Nonlinear-optic materials | 公開日期: | 2006 | 出版社: | Taipei:National Taiwan University Dept Chem Engn | 卷: | 289 | 期: | 1 | 起(迄)頁: | 145-150 | 來源出版物: | Journal of Crystal Growth | 摘要: | ZnO-doped near-stoichiometric lithium niobate (SLN) crystals were grown by the zone-leveling Czochralski (ZLCz) technique. The crystal was pulled from a Li-rich (60 mol% of Li2O) solution having an SLN solid supplied from below in a slender platinum crucible. The segregation coefficient of ZnO was found being about 0.58, and this could cause dopant segregation along the grown crystal. However, with a higher ZnO concentration in the solution zone, the composition homogeneity along grown crystal could be achieved. The properties of SLN at different zinc concentrations were measured, and the Curie temperature and cutoff wavelength showed a transition with the zinc concentration at about 1 mol%. Based on the reported mechanism, the anti-site defects of the grown crystals were about at the same concentration |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/2006111501233495 | 其他識別: | 246246/2006111501233495 |
顯示於: | 化學工程學系 |
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