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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 its growing solutions using high temperature Raman spectroscopy

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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LiB3 O5 以及晶 体自助溶生长溶液的高温微结构特征。 通过对LiB3 O5 晶体高温拉曼光谱、Li2 O·4B2 O3 组分玻璃体常温拉曼光谱和Li2 O·4B2 O3 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B(为桥氧)结构的硼氧六元环。随着温度的升高, 该六元环中B?4结构稳定性降低,发生硼氧四配位B向三配位B的转变。从而造成包含一个B结构的 硼氧六元环部分被破坏, Li2 O·4B2 O3 高温溶液中硼氧六元环基团B3 相对浓度增高。Li2 O·4B2 O3 高温溶液这一微结构特征对形成LiB3 O5 晶体相是有利的。

Abstract

Using the high micro-Raman spectroscopy, the micro-structures of nonlinear optical crystal LiB3 O5 and its high temperature solution were studied. The high temperature Raman spectra of LiB3 O5 crystals, Raman spectra of lithium borate glasses Li2 O·4B2 O3 at room temperature and its melt at high temperature were obtained. The analysis of these spectra indicates that the micro-structures of LiB3 O5 crystal and lithium borate glasses Li2 O·4B2 O3 are mainly the six-number boroxol rings containing one B tetrahedron (represents bridge oxygen). With the temperature increasing, the stability of B?4 tetrahedron decreases and destroys, a conversion from 4-coordinated boron B to 3-coordinated boron B occurs. As a result, the six-number boroxol rings containing one B are partly destroyed and the concentration of boroxol B3  in the high temperature solution increases. The structural characteristics of the high temperature Li2 O·4B2 O3 solution are benefit for LiB3 O5 crystal growth.

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中图分类号:O782

所属栏目:第二届全国光学青年学术论坛论文选登

基金项目: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)

收稿日期:2010-12-16

修改稿日期:2010-12-23

网络出版日期:0001-01-01

作者单位    点击查看

王迪: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
万松明: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上海大学上海市现代冶金与材料制备重点实验室,上海 200072
张庆礼: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
孙敦陆: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
殷绍唐: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
尤静林:上海大学上海市现代冶金与材料制备重点实验室,上海 200072
王媛媛:上海大学上海市现代冶金与材料制备重点实验室,上海 200072

联系人作者:王迪(WangDiean@gmail.com)

备注:王迪(1984-),安徽人,博士研究生,从事激光晶体材料生长机理研究。

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引用该论文

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 its growing solutions using high temperature Raman spectroscopy[J]. Chinese Journal of Quantum Electronics, 2011, 28(2): 241-246

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]. 量子电子学报, 2011, 28(2): 241-246

被引情况

【1】逯美红,雷海英,王志军,吴巧凤. 几种人工合成色素的荧光光谱与拉曼光谱研究. 量子电子学报, 2014, 31(1): 12-17

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