量子电子学报 ›› 2024, Vol. 41 ›› Issue (5): 822-829.doi: 10.3969/j.issn.1007-5461.2024.05.012

• 光学材料 • 上一篇    下一篇

新型红外非线性硒镓钡多晶的合成与提纯研究

周 强1,2, 王振友1, 吴海信1*, 黄昌保1, 倪友保1, 余学舟1,2, 胡倩倩1,2, 刘国晋1,2, 魏玲莉1,2   

  1. ( 1 中国科学院合肥物质科学研究院安徽光学精密机械研究所, 光子器件与材料安徽省重点实验室, 安徽 合肥 230031; 2 中国科学技术大学, 安徽 合肥 230026 )
  • 收稿日期:2023-12-28 修回日期:2024-02-01 出版日期:2024-09-28 发布日期:2024-09-28
  • 通讯作者: E-mail: hxwu@aiofm.ac.cn E-mail:hxwu@aiofm.ac.cn
  • 作者简介:周 强 ( 1997 - ), 安徽合肥人, 研究生, 主要从事红外非线性光学晶体材料方面的研究。E-mail: qiangzhou@mail.ustc.edu.cn
  • 基金资助:
    安徽省自然科学基金面上项目 (2108085ME151)

Synthesis and purification of novel infrared nonlinear BaGa4Se7 polycrystalline

ZHOU Qiang1,2 , WANG Zhenyou1 , WU Haixin1*, HUANG Changbao1 , NI Youbao1 , YU Xuezhou1,2 , HU Qianqian1,2 , LIU Guojin1,2 , WEI Lingli 1,2   

  1. (1 Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 2 University of Science and Technology of China, Hefei 230026, China)
  • Received:2023-12-28 Revised:2024-02-01 Published:2024-09-28 Online:2024-09-28

摘要: 硒镓钡晶体 (BaGa4Se7,BGSe) 是目前广受关注的一种新型红外非线性晶体。本文分别采用双温区法和高 压辅助法合成硒镓钡多晶原料,并设计大温度梯度快速提纯方法对合成后的多晶料进行提纯。通过粉末X射线衍 射仪 (XRD)、电感耦合等离子体质谱仪 (ICP-MS) 和X射线能谱仪 (EDS) 对提纯前后的BGSe多晶的物相组成和杂 质浓度进行了表征。X射线衍射谱与理论模拟图谱结果一致,无杂峰; ICP-MS等测试结果表明,提纯后晶锭中的 Fe、Al等金属杂质以及O杂质含量均得到明显降低。本工作可为高品质单晶生长提供原料基础。

关键词: 材料, 多晶合成, 双温区法, 高压辅助法, 大温度梯度提纯, 红外非线性晶体

Abstract: BaGa4Se7 (BGSe) is currently attracting considerable attention as a new type of infrared nonlinear crystal. We explored the synthesis of BGSe polycrystalline raw materials using both the twotemperature zone method and the high-pressure-assisted method, and designed a rapid purification method with a large temperature gradient to purify the synthesized polycrystalline material firstly. And then, the phase composition and impurity concentration of BGSe polycrystals before and after purification were characterized using powder X-ray diffraction (XRD), inductively coupled plasma mass spectrometry (ICP-MS) and energy-dispersive X-ray spectroscopy (EDS). The X-ray diffraction spectra are consistent with theoretical simulation results, showing no impurity peaks. ICP-MS test results also show a significant reduction in the content of metal impurities such as Fe, Al, and O impurity in the ingot after purification. The research can provide a raw material basis for the growth of high-quality single crystal.

Key words: material, polycrystalline synthesis, two-temperature zone method, high-pressure-assisted method, large temperature gradient purification, infrared nonlinear crystal

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