| 提拉法生长钽酸钾晶体 |
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| 引用本文： | 吴剑,徐民,王旭平,于永贵,于浩海,张怀金,王继扬.提拉法生长钽酸钾晶体[J].硅酸盐学报,2007,35(6):770-773. |
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| 作者姓名： | 吴剑 徐民 王旭平 于永贵 于浩海 张怀金 王继扬 |
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| 作者单位： | 山东大学,晶体材料国家重点实验室,济南,250100 |
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| 基金项目： | 电子科技大学开放课题电子器件与薄膜国家重点实验室资助项目 |
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| 摘 要： | 用提拉法生长出了一系列钽酸钾(KTaO3)晶体,其中最大可达31 mm×31 mm×40 mm,质量为247g.X射线粉末衍射仪测试结果表明:KTaO3单晶具有立方结构,晶胞参数a=0.398 88 nm.透射光谱显示:KTaO3单晶在340～3 500 nm的波长范围内有宽广的透光波段,仅在2 875 nm的处有吸收峰.讨论了KTaO3晶体的表面形貌、宏观缺陷及生长习性.
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| 关 键 词： | 钽酸钾 晶体生长 生长缺陷 提拉法 potassium tantalate crystal growth growth defect Czochralski method |
| 文章编号： | 0454-5648（2007）06-0770-04 |
| 修稿时间： | 2007-01-252007-02-15 |
GROWTH OF POTASSIUM TANTALATE SINGLE CRYSTALS BY THE CZOCHRALSKI METHOD |
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| WU Jian,XU Min,WANG Xuping,YU Yonggui,YU Haohai,ZHANG Huaijin,WANG Jiyang.GROWTH OF POTASSIUM TANTALATE SINGLE CRYSTALS BY THE CZOCHRALSKI METHOD[J].Journal of The Chinese Ceramic Society,2007,35(6):770-773. |
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| Authors: | WU Jian XU Min WANG Xuping YU Yonggui YU Haohai ZHANG Huaijin WANG Jiyang |
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| Affiliation: | State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China |
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| Abstract: | A series of large size and high quality potassium tantalate(KTaO3)single crystals up to 31 mm×31 mm×40 mm,weighing as much as 247 g,were grown by the Czochralski method.The X-ray powder diffraction experimental results show that the KTaO3 polycrystalline materials and as-grown KTaO3 crystals all have a cubic structure,with a lattice parameters a=0.398 88 nm.The transmittance spectra of the crystals show that they have a broad transparent wavelength range from 340 nm to 3 500 nm,except for an absorption peak at 2 875 nm.The morphological features,crystal defects and growth behavior of KTaO3 crystal were investigated. |
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| Keywords: | potassium tantalate crystal growth growth defect Czochralski method |
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