书目名称 | Layered Two-Dimensional Heterostructures and Their Tunneling Characteristics |
编辑 | Sergio C. de la Barrera |
视频video | |
概述 | Nominated as an outstanding Ph.D. thesis by Carnegie Mellon University.Focuses on the timely topic of interlayer transport phenomena in two-dimensional materials.Describes a theory, illustrated with e |
丛书名称 | Springer Theses |
图书封面 |  |
描述 | This thesis demonstrates that layered heterostructures of two-dimensional crystals graphene, hexagonal boron nitride, and transition metal dichalcogenides provide new and interesting interlayer transport phenomena. Low-energy electron microscopy is employed to study the surface of atomically thin WSe2 prepared by metal-organic chemical vapor deposition on epitaxial graphene substrates, and a method for unambiguously measuring the number of atomic layers is presented. Using very low-energy electrons to probe the surface of similar heterostructures, a relationship between extracted work function differences from the layers and the nature of the electrical contact between them is revealed. An extension of this analysis is applied to surface studies of MoSe2 prepared by molecular beam epitaxy on epitaxial graphene. A large work function difference is measured between the MoSe2 and graphene, and a model is provided which suggests that this observation results from an exceptional defect density in the MoSe2 film. The thesis expounds a theory for computing tunneling currents between two-dimensional crystals separated by a thin insulating barrier; a few situations resulting in resonant tun |
出版日期 | Book 2017 |
关键词 | resonant tunneling physics; low-energy electron microscopy; characterization of tungsten diselenide; tr |
版次 | 1 |
doi | https://doi.org/10.1007/978-3-319-69257-9 |
isbn_softcover | 978-3-319-88744-9 |
isbn_ebook | 978-3-319-69257-9Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
issn_series | 2190-5053 |
copyright | Springer International Publishing AG 2017 |