Vibrations & lattices : structural control and characterization of two-dimensional materials
Abstract/Contents
- Abstract
- The exfoliation of graphene in 2004 marked the experimental beginning of a new group of materials: two-dimensional materials. Tens of two-dimensional (2D) materials have since been discovered with over one thousand more theoretically predicted. Within these, my doctoral work has focused on the structure-function characterization of the layered transition metal dichalcogenides, specifically MoTe2 and MoS2. Analyzing the crystalline vibrations of MoTe2 with Raman spectroscopy, I demonstrated reversible electrochemical phase change between MoTe2's semiconducting and metallic states for applications in phase change memory. Using synchrotron X-ray diffraction to measure the lattice spacings of MoS2, I developed processes to accurately identify strain in MoS2 embedded under device-like layers for next generation electronics. Concurrently with the above work, I collaborated on several projects where I used Raman and X-ray diffraction to provide structural insight into a variety of materials. This work adds to the growing body of 2D material literature, inspiring work in tungsten alloying of MoTe2 to lower the transition voltage necessary for the 2H to 1T' phase change. It also enables X-ray diffraction workflows that can be used to structurally characterize future, yet to be discovered 2D materials.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2022; ©2022 |
| Publication date | 2022; 2022 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Zakhidov, Dante |
|---|---|
| Degree supervisor | Salleo, Alberto |
| Thesis advisor | Salleo, Alberto |
| Thesis advisor | Jornada, Felipe |
| Thesis advisor | Pop, Eric |
| Degree committee member | Jornada, Felipe |
| Degree committee member | Pop, Eric |
| Associated with | Stanford University, Department of Materials Science and Engineering |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Dante Zakhidov. |
|---|---|
| Note | Submitted to the Department of Materials Science and Engineering. |
| Thesis | Thesis Ph.D. Stanford University 2022. |
| Location | https://purl.stanford.edu/gd929jm7006 |
Access conditions
- Copyright
- © 2022 by Dante Zakhidov
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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