| 期刊全称 | Atomic and Electronic Properties of 2D Moiré Interfaces | | 影响因子2023 | Astrid Weston | | 视频video | | | 发行地址 | Nominated as an outstanding PhD thesis by the University of Manchester, UK.Demonstrates the first atomic-scale studies of lattice reconstruction of 2-dimensional moiré superlattices.Provides a detaile | | 学科分类 | Springer Theses | | 图书封面 |  | | 影响因子 | .This thesis provides the first atomic length-scale observation of the structural transformation (referred to as lattice reconstruction) that occurs in moiré superlattices of twisted bilayer transition metal dichalcogenides (TMDs) at low (θ < 2˚) twist angles. Such information is essential for the fundamental understanding of how manipulating the rotational twist-angle between two adjacent 2-dimensional crystals subsequently affects their optical and electrical properties..Studies using Scanning transmission electron microscopy (STEM), a powerful tool for atomic-scale imaging, were limited due to the complexity of the (atomically-thin) sample fabrication requirements. This work developed a unique way to selectively cut and re-stack monolayers of TMDs with a controlled rotational twist angle which could then be easily suspended on a TEM grid to meet the needs of the atomically thin sample requirements. The fabrication technique enabled the study of the two common stacking-polytypes including 3R and 2H (using MoS2 and WS2 as the example) as well as their structural evolution with decreasing twist-angle..Atomic-scale studies were followed by a comprehensive investigation of their elec | | Pindex | Book 2022 |
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发表于 2025-3-21 17:39:57
