欢迎访问《人工晶体学报》官方网站,今天是 分享到:

人工晶体学报 ›› 2025, Vol. 54 ›› Issue (6): 1042-1049.DOI: 10.16553/j.cnki.issn1000-985x.2025.0003

• 研究论文 • 上一篇    下一篇

高效可重现的SbI3声化学合成及其薄膜制备

李晴雯1,2(), 钟敏1,2()   

  1. 1.渤海大学化学与材料工程学院,锦州 121013
    2.辽宁省光电功能材料与检测重点实验室,锦州 121013
  • 收稿日期:2025-01-08 出版日期:2025-06-20 发布日期:2025-06-23
  • 通信作者: 钟 敏,博士,副教授。E-mail:zhongmin@ bhu.edu.cn
  • 作者简介:李晴雯(1999—),女,山西省人,硕士研究生。E-mail:z15581862326@126.com
  • 基金资助:
    辽宁省教育厅基金(LJKZ1029)

Highly Efficient and Reproducible Sonochemical Synthesis of SbI3 and Its Films

LI Qingwen1,2(), ZHONG Min1,2()   

  1. 1.College of Chemical and Material Engineering,Bohai University,Jinzhou 121013,China
    2.Liaoning Key Laboratory of Optoelectronic Functional Materials Testing and Technology,Jinzhou 121013,China
  • Received:2025-01-08 Online:2025-06-20 Published:2025-06-23

摘要: 二维金属卤化物近年来成为研究热点,其中三碘化锑(SbI3)因具有光学各向异性、较高的折射率、二次谐波等特性被用于辐射探测器和光电器件。但SbI3价格昂贵,限制了其大规模应用。本文以锑粉和碘粉为原料,首次采用声化学方法合成了SbI3,并研究了超声时间、反应溶剂、Sb物质的量及锑碘摩尔比对产物的影响,并以此粉体为原料制得SbI3晶体和薄膜。结果表明,当溶剂为甲醇,锑碘摩尔比n(Sb)∶n(I2)=2∶3.6(碘过量20%),超声时间为100 min时,得到纯相SbI3粉体。采用升华法在温度为220 ℃,反应时间为3 h时得到(006)高取向的SbI3晶体。采用气相输运沉积方法制备SbI3薄膜时,沉积距离对薄膜形貌有较大影响。沉积距离增大使薄膜致密性提高,但沉积区温度降低导致薄膜晶化变差,因此要选择合适的沉积距离。此处,沉积距离为17.5 cm时获得了致密均匀的SbI3薄膜。该声化学合成SbI3的方法简单高效,成本低,重现性好,并可拓展应用于AgI、CuI、BiI3和Cs3Bi2I9等金属碘化物的合成。

关键词: 三碘化锑; 半导体光电材料; 声化学合成; 升华; 气相输运沉积

Abstract: Two-dimensional (2D) metal halides have attracted increasing research attention in recent years. Antimony triiodide (SbI3) is used in radiation detectors and optoelectronic devices due to its optical anisotropy, high refractive index, and second harmonic generation. However, the high price of SbI3 limits its large-scale application. In this paper, SbI3 was synthesized by the sonochemical method using antimony powder and iodine powder as raw materials for the first time. The effects of ultrasound time, solvent, Sb content, and antimony-iodine ratio were studied and finally SbI3 crystals and films were prepared successfully from the synthesized powder. The results show that the SbI3 powder with pure phase is obtained using methanol as the solvent, with a Sb to I2 molar ratio of 2∶3.6 (a 20% molar excess of iodine) and the ultrasonic time of 100 min. A highly oriented SbI3 crystal along the (006) plane is obtained by the sublimation method at 220 ℃ for 3 h. When preparing SbI3 film by vapor transport deposition method, the deposition distance has a great influence on the morphology of the film. Increasing the deposition distance improves the density of the film, but the crystallization degree of the film decreases due to the decrease in temperature. Therefore, it is necessary to choose an appropriate deposition distance. Here, a dense and uniform SbI3 film can be obtained at a deposition distance of 17.5 cm. The method of sonochemical synthesis of SbI3 is simple, efficient, low cost, reproducible, and can be extended to the synthesis of other metal iodides such as AgI, CuI, BiI3, Cs3Bi2I9 and so on.

Key words: SbI3; photoelectric materials of semiconductor; sonochemical synthesis; sublimation; vapor transport deposition

中图分类号: