人工晶体学报2025，Vol.54Issue(6)：1042-1049,8.DOI:10.16553/j.cnki.issn1000-985x.2025.0003
高效可重现的SbI3声化学合成及其薄膜制备
Highly Efficient and Reproducible Sonochemical Synthesis of SbI3 and Its Films
摘要
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.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Key words
SbI3/photoelectric materials of semiconductor/sonochemical synthesis/sublimation/vapor transport deposition分类
物理学引用本文复制引用
李晴雯,钟敏..高效可重现的SbI3声化学合成及其薄膜制备[J].人工晶体学报,2025,54(6):1042-1049,8.基金项目
辽宁省教育厅基金(LJKZ1029) （LJKZ1029）
