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近化学计量比铌酸锂晶体组分测定与缺陷观察
Determination of Composition and Observation of Defects of Near-stoichiometric Lithium Niobate Crystal
【摘要】 采用助熔剂提拉法生长得到近化学计量比L iNbO3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[L i2O]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。
【Abstract】 Near-stoichiometric LiNbO3 crystal was grown from a melt with addition of K2O by using Czochralski method.Different methods were used to determine the crystal composition.These measurements indicate that there is 49.8mol% Li2O 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.
【关键词】 LiNbO3;
近化学计量比;
缺陷;
组分测定;
化学腐蚀;
【Key words】 LiNbO3; near-stoichiometric; defects; determination of composition; chemical etching;
【Key words】 LiNbO3; near-stoichiometric; defects; determination of composition; chemical etching;
【基金】 国家“863”计划项目资助(No.2002AA31110)
- 【文献出处】 人工晶体学报 ,Journal of Synthetic Crystals , 编辑部邮箱 ,2006年04期
- 【分类号】O614.111
- 【被引频次】9
- 【下载频次】173