解链非层状块体结构的化学键形成纳米晶
Unzipping chemical bond of non-layered bulk structures to form ultrathin nanocrystals
摘要：
单层晶体的丰富的电子和能带结构与其层状本体对应物不同，提供了多种物理/化学性质和应用。1 -5它们的制造，特别是自上而下的“剥离”，成功地保证了单层之间的弱范德华力。6 -9不同的是，由于平面和原子之间的强化学键，将超薄晶体（例如，仅具有一层晶面）从非层状结构解压缩是非常具有挑战性的。改变这些超薄材料的精细控制生长并不真正成功。这项工作演示了如何使用一种技术从大块非层状结构（ZnO，α/β-MnO 2，TiO 2，α-TiB 2）中解压缩和分解超薄晶面（例如单层纳米晶体和纳米片），并介绍了基本光学性质如何改变以区分其体相。这里的工作为各种新型2D非层状纳米材料提供了强大的工具包，为二维材料家族做出了重大贡献，可能为各种实际应用铺平道路。
英文摘要：
The rich electronic and band structures of monolayered crystals distinguished from their layered bulk counterparts offer versatile physical/chemical properties and applications.1-5 Their fabrications, particularly the top-down "exfoliations", are successful promised by the weak Van der Waals force between monolayers.6-9 Differentially, un-zipping ultra-thin crystals (e.g. with only one layer of crystal plane) from non-layered structures is highly challenging due to the strong chemical bond between planes and atoms. Alterative finely controlled growth of these ultra-thin materials is not really successful. This work demonstrates how a technique can be used to unzip and disintegrate ultra-thin crystal plane (e.g. monolayered nanocrystals and nanosheets) from bulk non-layered structures (ZnO, alpha/belta-MnO2, TiO2, alpha-TiB2), and present how the basic optical properties changed to distinguish from their bulk phases. The work here gives a strong tool kit to various novel 2D non-layered nanomaterials, providing significant contributions to the family of two-dimensional materials, potentially paving the way for various practical applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
