Accession Number:

AD1039644

Title:

Redox Liquid Phase Exfoliation of Layered Transition Metal Dichalcogenides (Postprint)

Descriptive Note:

Journal Article - Embargoed Full-Text

Corporate Author:

Air Force Research Laboratory Wright Patterson Air Force Base United States

Personal Author(s):

• Jawaid,Ali
• Che,Justin
• Drummy,Lawrence F.
• Bultman,John
• Waite,Adam
• Hsiao,Ming-Siao
• Vaia,Richard A.

Report Date:

2016-12-29

Pagination or Media Count:

35.0

Abstract:

Layered transition metal dichalcogenides TMDs are an emerging class of 2-dimensional materials due to their diverse property suite, which range from semiconducting and semimetallic to metallic and superconducting.1 Their lamellar structure consists of a transition metal layer M sandwiched between two chalcogen layers X with strong M-X intralayer bonding. These layers are separated by a weak van der waals gap. At the few- to mono-layer limit, coupling between layers is reduced, in-plane confinement dominates, and the band structure changes. This affords unique opportunities for chemical sensing, catalysis, spintronics, single-photon emission, infrared optics, nanocomposites, coatings, and printable inks for nanoelectronics.25 Thus, a suite of processing methods have evolved to satisfy application-specific requirements, such as defect density, scale, cost, and integration. Top-down exfoliation of powders affords large volume use and compliments molecular-based monolayer growth for micro-fabricated devices.

Descriptors:

• transition metals
• liquid phases
• oxidation reduction reactions
• exfoliation
• diffraction
• absorption spectra
• dispersions
• crystal structure

Subject Categories:

• Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE