Twisted epitaxy of gold nanodisks grown between twisted substrate layers of molybdenum disulfide

• 成果类型: Article
• 署名作者: Cui, Yi; Wang, Jingyang; Li, Yanbin; Wu, Yecun; Been, Emily; Zhang, Zewen; Zhou, Jiawei; Zhang, Wenbo; Hwang, Harold Y.; Sinclair, Robert; Cui, Yi
• 署名单位: Stanford University; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; Stanford University; Stanford University; United States Department of Energy (DOE); SLAC National Accelerator Laboratory; Stanford University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-14059
• DOI: 10.1126/science.adk5947
• 发表日期: 2024-01-12
• 页码: 212-+
• 关键词: core-shell; nanocrystals; nanowires; graphene; heterostructures; cosi2

摘要

We expand the concept of epitaxy to a regime of twisted epitaxy with the epilayer crystal orientation between two substrates influenced by their relative orientation. We annealed nanometer-thick gold (Au) nanoparticles between two substrates of exfoliated hexagonal molybdenum disulfide (MoS2) with varying orientation of their basal planes with a mutual twist angle ranging from 0 degrees to 60 degrees. Transmission electron microscopy studies show that Au aligns midway between the top and bottom MoS2 when the twist angle of the bilayer is small (