Controlled nanostructures of atomically thin 2D oxides for next generation functional materials
Abstract
We propose to elucidate and establish the processing requirements of 2D metal oxides to access mono- and nano-layers (a few layers thick) with controllable and tunable lateral size, crystallographic structure and electrical properties. Layered materials are defined with strong in-plane bonding and weak bonding betwee the planes (i.e., interplane). The importance of isolating 2D materials as opposed to bulk materials is twofold; (i) transforming the bonding, structure and the associated electronic and magnetic states and (ii) significantly increasing the surface area for a given volume, and thus leading to novel catalytic behavior, unique functionalization approaches, and providing access to distinct composites systems, for example leading to advances in energy storage or material strengthening. Despite the recent increase in 2D oxide nano-sheet research, this field is still very nascent in comparison with the research established in grapheme and transition metal dichalcogenides and thus a fundamental and thorough evaluation of materials preparation, processing, and properties are required to exploit their advantageous characteristics. A closed loop experimental and theoretical project is proposed that will combine processing, characterization and modeling to (i) explore, realize chemical exfoliation in oxides (ii) elucidate the physical mechanisms of ion-exchange based exfoliation, (iii) explore the unique properties of isolated 2D oxide sheets, (iv) compare the 2D properties of free standing and supported sheets (v) control the carrier doping of 2D oxides, (vi) explore the relation between specific 2D structural variation and properties.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA95501810030
Entities
People
- Alp Sehirlioglu
Organizations
- Air Force Office of Scientific Research
- Case Western Reserve University
- United States Air Force