| 坩埚下降法生长铌酸锂晶体 |
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| 引用本文： | 向卫东,粱晓娟,陆宝亮,李新华,徐家跃,夏宗仁,吴剑波.坩埚下降法生长铌酸锂晶体[J].硅酸盐学报,2007,35(10):1387-1389,1395. |
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| 作者姓名： | 向卫东 粱晓娟 陆宝亮 李新华 徐家跃 夏宗仁 吴剑波 |
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| 作者单位： | 温州大学化学与材料学院,浙江,温州,325035;温州大学化学与材料学院,浙江,温州,325035;大连海事大学,辽宁,大连,116021;中国科学院上海硅酸盐研究所,上海,200050;德清华莹电子有限公司,浙江,德清,313216 |
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| 摘 要： | 采用坩埚下降法,生长了直径为5 cm的铌酸锂晶体.探讨了晶体生长工艺条件,测试了晶体的透过光谱.所得晶体呈浅茶色,分析认为主要是氧空位缺陷所致.铌酸锂晶体通常用作声表面波(surface acoustic wave,SAW)器件的基片,氧空位缺陷可增加基片的电导率,减少器件制造过程中晶片开裂,有利于提高SAW器件成品率.
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| 关 键 词： | 铌酸锂晶体 坩埚下降法 晶体生长 |
| 文章编号： | 0454-5648（2007）10-1387-03 |
| 修稿时间： | 2007-02-132007-05-21 |
GROWTH OF LITHIUM NIOBATE CRYSTAL BY THE VERTICAL BRIDGMAN METHOD |
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| XIANG Weidong,LIANG Xiaojuan,LU Baoliang,LI Xinhua,XU Jiayue,XIA Zongren,WU Jianbo.GROWTH OF LITHIUM NIOBATE CRYSTAL BY THE VERTICAL BRIDGMAN METHOD[J].Journal of The Chinese Ceramic Society,2007,35(10):1387-1389,1395. |
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| Authors: | XIANG Weidong LIANG Xiaojuan LU Baoliang LI Xinhua XU Jiayue XIA Zongren WU Jianbo |
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| Affiliation: | 1. Collage of Chemistry and Materials Sciences, Wenzhou University, Wenzhou 325035, Zhejiang; 2. Dalian Marine University, Dalian 116021, Liaoning; 3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050; 4. Deqing Huaying Electronic Company, Deqing 313216, Zhejiang, China |
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| Abstract: | As a surface acoustic wave (SAW) substrate material, LiNbO3 crystal up to 5 cm in diameter was grown by the vertical Bridgman method. The growth parameters were optimized and the optical transmittance spectra of the LiNbO3 crystal were measured. The as-grown crystal shows a pale brown color, which was attributed to oxygen deficiency during the growth process. Oxygen deficiency produced in crystal may increase electric conductivity and reduce cracking of the LiNbO3 substrates, which is helpful to increase the yield of SAW devices. |
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| Keywords: | lithium niobate crystal the vertical Bridgman method crystal growth |
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