欢迎访问《人工晶体学报》官方网站,今天是 2025年7月15日 星期二 分享到:

人工晶体学报 ›› 2025, Vol. 54 ›› Issue (5): 784-792.DOI: 10.16553/j.cnki.issn1000-985x.2024.0277

• 研究论文 • 上一篇    下一篇

低位错6英寸锑化镓单晶生长与性能研究

杨文文1,2(), 卢伟1, 谢辉1, 刘刚1, 吕鑫雨1,2, 摆易寒1,2, 李晨慧1, 潘教青3, 赵有文1, 沈桂英1,2()   

  1. 1.中国科学院半导体研究所,固态光电信息技术实验室,北京 100083
    2.中国科学院大学材料科学与光电技术学院,北京 100049
    3.中国科学院半导体研究所,光电子材料与器件重点实验室,北京 100083
  • 收稿日期:2024-11-06 出版日期:2025-05-15 发布日期:2025-05-28
  • 通信作者: 沈桂英,博士,副研究员。E-mail:shenguiying@semi.ac.cn
  • 作者简介:杨文文(1999—),女,吉林省人,博士研究生。E-mail:yww@semi.ac.cn
  • 基金资助:
    国家自然科学基金面上项目(62374161)

Growth and Performance of Low-Dislocation 6-Inch GaSb Single Crystal

YANG Wenwen1,2(), LU Wei1, XIE Hui1, LIU Gang1, LYU Xinyu1,2, BAI Yihan1,2, LI Chenhui1, PAN Jiaoqing3, ZHAO Youwen1, SHEN Guiying1,2()   

  1. 1. Laboratory of Solid-State Optoelectronic Information Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China
    2. College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China
    3. Key Laboratory of Optoelectronic Materials and Devices,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China
  • Received:2024-11-06 Online:2025-05-15 Published:2025-05-28

摘要: 锑化镓因其优越的物理特性和重要的应用价值而受到广泛关注。研究团队采用液封直拉法成功生长出国内首根6英寸n型掺Te锑化镓单晶锭,加工制备出高质量6英寸(1英寸=2.54 cm)锑化镓单晶衬底,并对晶体结晶质量和晶片表面性质进行了研究。测试结果表明,锑化镓衬底(400)面摇摆曲线半峰全宽仅为20″,平均位错密度约为3 177 cm-2,表面粗糙度Rq为0.42 nm,氧化层厚度为2.92 nm,显示出6英寸锑化镓单晶具有较高的结晶质量和优良的表面形貌。此外,通过对6英寸锑化镓单晶生长过程进行数值模拟计算,获得了其热场分布、流场分布和固液界面偏转情况。这些研究成果为锑化镓材料的高质量生长提供了新的思路,并为大尺寸晶体的产业化应用提供了坚实基础。

关键词: 6英寸; 锑化镓; 液封直拉法; 位错密度; 数值模拟; 热场分布; 氧化层厚度; 粗糙度

Abstract: Gallium antimonide has been widely recognized for its superior physical properties and significant application value. The first domestic 6-inch n-type Te-doped GaSb single crystal ingot was successfully grown by the research team using the liquid encapsulated Czochralski method. High-quality 6-inch GaSb wafers are prepared, and the crystal quality and wafer surface properties are studied. The full width at half maximum of the rocking curve for the (400) plane of the GaSb substrate is only 20″, and the average dislocation density is approximately 3 177 cm-2. The surface roughness (Rq) is 0.42 nm, and the oxide layer thickness is 2.92 nm. These results demonstrate the high crystalline quality and excellent surface morphology of the 6-inch GaSb single crystal. In addition, numerical simulations of the growth process of the 6-inch GaSb single crystal are conducted, revealing the thermal field distribution, flow field distribution, and solid-liquid interface deflection. These findings provide new insights for the high-quality growth of GaSb materials and lay a foundation for the industrial application of large-sized crystals.

Key words: 6-inch; GaSb; liquid encapsulated Czochralski method; dislocation density; numerical simulation; thermal field distribution; oxide layer thickness; surface roughness

中图分类号: