Fundamental Investigation of Dynamic Phenomena in Atomically Thin Layered Materials
Abstract
The objective of this proposal is to investigate novel thermodynamic phenomena of atomically thin layered 2D materials to elucidate the interplay between local structures and dynamic behaviors as well as external fields. The PI proposes to develop time-dependent in-situ scanning probe techniques, combined scanning tunneling microscopy and atomic force microscopy to provide fundamental understanding of the mechanisms governing dynamic process in 2D materials. More specifically the PI will explore 1) the equilibrium morphology of 2D nanostructures 2) quantify the key thermodynamic parameters such as free energy of edges, edge stiffness, kink excitation energy, diffusion barrier etc. 3) electro -migration of dopants in 2D materials and at the interfaces. The dynamic behavior in various 2D materials such as MoS2, BN, and TiSe2 will be investigated to understand the differences in different material systems.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510414
Entities
People
- Chenggang Tao
Organizations
- Army Contracting Command
- United States Army
- Virginia Tech