| 近化学计量比铌酸锂晶体组分测定与缺陷观察 |
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| 引用本文： | 黄庆捷,王继扬. 近化学计量比铌酸锂晶体组分测定与缺陷观察[J]. 人工晶体学报, 2006, 35(4): 677-681 |
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| 作者姓名： | 黄庆捷 王继扬 |
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| 作者单位： | 山东大学信息科学与工程学院,济南,250100;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： | 国家“863”计划项目资助(No.2002AA31110) |
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| 摘 要： | 采用助熔剂提拉法生长得到近化学计量比LiNbO3晶体.用多种方法测定了晶体组分,结果表明生长得到的晶体中[Li2O]含量为49.80;摩尔分数;对晶体缺陷的研究表明晶体质量有待提高,并分析了晶体中出现包裹物的原因.
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| 关 键 词： | LiNbO3 近化学计量比 缺陷 组分测定 化学腐蚀 |
| 文章编号： | 1000-985X（2006）04-0677-05 |
| 收稿时间： | 2006-04-04 |
| 修稿时间： | 2006-04-04 |
Determination of Composition and Observation of Defects of Near-stoichiometric Lithium Niobate Crystal |
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| HUANG Qing-jie,WANG Ji-yang. Determination of Composition and Observation of Defects of Near-stoichiometric Lithium Niobate Crystal[J]. Journal of Synthetic Crystals, 2006, 35(4): 677-681 |
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| Authors: | HUANG Qing-jie WANG Ji-yang |
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| Affiliation: | 1. School of Information Science and Engineering, Shandong University, Jinan 250100, China; 2. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100,China |
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| Abstract: | Near-stoichiometric LiNbO_3 crystal was grown from a melt with addition of K_2O by using Czochralski method.Different methods were used to determine the crystal composition.These measurements indicate that there is 49.8mol% Li_2O content in the crystal.Investigation of crystal defects reveals the crystal quality could be improved.The reason of inclusion that exists in the crystal is explained. |
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| Keywords: | LiNbO_3 near-stoichiometric defects determination of composition chemical etching |
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