LiB3O 5晶体及其自助溶生长溶液的高温拉曼光谱研究

J4 ›› 2011, Vol. 28 ›› Issue (2): 241-246.

• 第二届全国光学青年学术论坛论文选登 • 上一篇下一篇

LiB₃O₅晶体及其自助溶生长溶液的高温拉曼光谱研究

王迪¹ 万松明^1，2 张庆礼¹ 孙敦陆¹ 殷绍唐¹ 尤静林² 王媛媛²

1 中国科学院安徽光学精密机械研究所安徽省光子器件与材料重点实验室，安徽合肥 230031;
2 上海大学上海市现代冶金与材料制备重点实验室，上海 200072

发布日期:2011-03-03
通讯作者: 殷绍唐（1944- ）云南人，资深研究员，从事激光晶体材料研究。 E-mail:shtyin@aiofm.ac.cn
作者简介:王迪（1984- ），男，安徽，博士研究生，从事激光晶体材料生长机理研究。E-mail：WangDiean@gmail.com.
基金资助:
国家自然科学基金重点项目( 50932005), 国家自然科学基金( 50772112,50872135), 上海市现代冶金与材料制备重点实验室开放课题（SELF-2009-01）

Investigation on LiB3O5 crystal and it's growing solutions using high temperature Raman spectroscopy

WANG Di¹, WAN Song-Ming^1，2, ZHANG Qing-Li¹, SUN Dun-Lu¹, YIN Shao-Tang¹, YOU Jing-Lin², WANG Yuan-Yuan²

1 Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
2 Shanghai Key Laboratory of Mordern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072, China

Online:2011-03-03

摘要/Abstract

摘要：

利用高温共焦激光显微拉曼光谱技术，研究了非线性光学晶体LiB3O5以及晶体自助溶生长溶液的高温微结构特征。通过对LiB3O5晶体高温拉曼光谱、Li2O•4B2O3组分玻璃体常温拉曼光谱和Li2O•4B2O3高温溶液拉曼光谱的分析表明：晶体、玻璃体中主要的结构单元为包含一个BØ4(Ø为桥氧)结构的硼氧六元环。随着温度的升高，该六元环中BØ4结构稳定性降低，发生硼氧四配位BØ4向三配位BØ3的转变。从而造成包含一个BØ4结构的硼氧六元环部分被破坏，Li2O•4B2O3高温溶液中硼氧六元环基团B3Ø6相对浓度增高。Li2O•4B2O3高温溶液这一微结构特征对形成LiB3O5晶体相是有利的。

关键词: 材料, LiB3O5晶体, 助溶剂晶体生长, 硼酸盐玻璃, 高温拉曼光谱

Abstract:

Using the high micro-Raman spectroscopy, the micro-structures of non-linear optical LiB3O5 crystal and the high temperature solution were studied. The high temperature Raman spectra of LiB3O5 crystals, Raman spectra of lithium borate glasses Li2O•4B2O3 at room temperature and its melt at high temperature were obtained. The analysis of these spectra indicates that the micro-structures of LiB3O5 crystal and lithium borate glasses Li2O•4B2O3 are mainly the six-number boroxol rings containing one BØ4 tetrahedron (Ø represents bridge oxygen). With the temperature increasing, the stability of the BØ4 tetrahedron decrease and destroys, a conversion from 4- coordinated boron BØ4 to 3- coordinated boron BØ3 occurs. As a result, the six-number boroxol rings containing one BØ4 are partly destroyed and the concentration of the boroxol B3Ø6 in the high temperature solution increases. The structural characteristics of the high temperature Li2O•4B2O3 solution are benefit for LiB3O5 crystal growth.

Key words: materials, LB₃O₅ crystal, high temperature solution crystal growth, lithium borate glasses, high temperature Raman spectroscopy

中图分类号:

O782

王迪万松明张庆礼孙敦陆殷绍唐尤静林王媛媛. LiB₃O₅晶体及其自助溶生长溶液的高温拉曼光谱研究[J]. J4, 2011, 28(2): 241-246.

WANG Di, WAN Song-Ming, ZHANG Qing-Li, SUN Dun-Lu, YIN Shao-Tang, YOU Jing-Lin, WANG Yuan-Yuan. Investigation on LiB3O5 crystal and it's growing solutions using high temperature Raman spectroscopy[J]. J4, 2011, 28(2): 241-246.

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LiB₃O₅晶体及其自助溶生长溶液的高温拉曼光谱研究

Investigation on LiB3O5 crystal and it's growing solutions using high temperature Raman spectroscopy

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