新型二维铜族硫族化合物的研究进展  

Research Progress of Two-Dimensional Group 11 Chalcogenides

作　　者：刘涵 高蕾[1] 薛宇飞 叶宇娇 曾春华[1] LIU Han;GAO Lei;XUE Yufei;YE Yujiao;ZENG Chunhua(Institute of Physical and Engineering Science/Faculty of Science,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学物理与工程科学研究院/理学院,昆明650500

出　　处：《人工晶体学报》2022年第8期1493-1510,共18页Journal of Synthetic Crystals

基　　金：国家自然科学基金(11665014);云南省自然科学基金(2019FI002,202101AS070018,202101AV070015,202101AU070043)。

摘　　要：二维材料因其纳米级尺寸、超凡的电子特性、出色的机械性能等,被视为下一代信息器件的理想材料。随着外延生长等自下而上制备方法以及材料计算方法的发展和提高,越来越多的体相非层状的二维材料被制备和发现。近年来在信息器件等领域具有应用潜力的体相非层状的二维铜族(11族)硫族化合物得到广泛关注,铜族元素位于化学元素周期表中的11族,主要包括铜、银和金等元素。本文综述了二维铜族硫族化合物的研究进展,以化学计量比为主线,将二维铜族硫族化合物分为MX单层(M=Cu,Ag,Au;X=O,S,Se,Te)、M_(2)X单层以及其他化学计量比的铜族硫族化合物单层。从实验合成和理论模拟两个角度出发,对二维铜族硫族化合物原子结构、能带结构、电学特性等进行介绍。从现有的报道来看,体相非层状的新型二维铜族硫族化合物不仅包含半导体、金属等电子性质,还表现出拓扑、磁性等丰富的新奇物性,是一类值得关注的新型二维功能材料。Two-dimensional(2D)materials are considered as the ideal materials for the next-generation information devices,owing to their nanoscale sizes,novel electronic properties,excellent mechanical properties,et al.In recent years,with the development and improvement of bottom-up preparation methods,such as epitaxial growth method,and material calculation methods,more and more two-dimensional materials with non-layered bulk phases have been prepared and discovered.Here,the research progresses of new two-dimensional group 11(include Cu,Ag,Au)chalcogenides with non-layered bulk phases which show application potential in information devices and other fields are summarized.Taking stoichiometric ratio as the main line,the atomic structures and physical properties of monolayer MX(M=Cu,Ag,Au;X=O,S,Se,Te),M_(2)X and other stoichiometric-ratio group 11 chalcogenides are introduced in detail from both experimental and theoretical perspectives.Two-dimensional group 11 chalcogenides possess not only all electronic properties(metal,semiconductor and insulator)but also abundant novel physical properties(superconductivity,topology,magnetism,etc.).Due to the novel properties and potential applications of the 2D group 11 chalcogenides,the novel class of 2D materials is worthy of more attention.

关 键 词：二维材料 铜族硫族化合物 体相非层状 电子结构 第一性原理计算 密度泛函理论 

分 类 号：TB34[一般工业技术—材料科学与工程] O469[理学—凝聚态物理]