二维少层钙钛矿物性的研究进展  

Recent Progress of the Physical Properties of Two-dimensional Few-layer Perovskite

作　　者：任伟[1] 许少文 程晋荣[2] 贾帆豪 REN Wei;XU Shaowen;CHENG Jinrong;JIA Fanhao(Department of Physics,International Centre for Quantum and Molecular Structures,Shanghai University,Shanghai 200444;School of Materials Science and Engineering,Shanghai University,Shanghai 200444)

机构地区：[1]上海大学物理系上海大学量子与分子结构国际中心,上海200444 [2]上海大学材料科学与工程学院,上海200444

出　　处：《山西大学学报（自然科学版）》2022年第3期723-733,共11页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(11929401,12074241,52120204,51861145315);上海市科委(19010500500,20501130600,21JC1402700)。

摘　　要：随着近年实验技术的进展,一系列稳定的自支撑少层钙钛矿体系(包括氧化物钙钛矿和有机无机杂化钙钛矿)被成功制备,为设计二维多功能材料提供了巨大的机遇。文章将简略地回顾水溶性牺牲层外延和远程外延两种原子层级精确的生长技术,然后从第一性原理计算角度,聚焦其电子结构和几何结构性质,论述钙钛矿在二维少层情况下所表现出的一系列新奇特征和丰富物性。最后总结这些凝聚态物质表现出的复杂性和存在的普遍性,展望其在量子输运、光电和介电等领域的潜在应用。With the recent development of experimental techniques,a series of stable freestanding few-layer perovskites(including oxide perovskites and hybrid organic-inorganic perovskites)have been successfully synthesized,providing a huge opportunity for the design of two-dimensional multifunctional materials.This review will first briefly introduce two recent atomically controllable experimental technologies,including the epitaxial growth above a water-soluble layer and remote epitaxial growth.Then,we focus on the structural and electronic properties from the perspective of first-principles calculations to reveal their rich and novel characteristics.Finally,we will summarize the complex and general physical properties,give some thoughts and prospects for the potential applications in fields such as transport,optoelectronics and dielectrics.

关 键 词：少层氧化物钙钛矿 少层有机无机杂化钙钛矿 晶格结构性质 电子结构性质 

分 类 号：O469[理学—凝聚态物理]