Metal-Organic Chalcogenolates
Abstract
Short-Term Innovative Research (STIR) funding is requested to synthesize and characterize a series of 2D metal-organic chalcogenolate assemblies (MOCHAs), a novel class of hybrid organic-inorganic 2D semiconductors. 2D MOCHAs show all the characteristics of a ground-breaking new semiconductor material: tunable band gap across the visible and deep-blue spectrum, strong exciton binding energy, bright luminescence, in-plane anisotropy, non-toxic and environmentally friendly elemental composition, low-cost and scalable synthetic pathways, and chemical robustness. The objective of this project is to assess the potential of 2D MOCHAs to serve as a viable materials platform for the investigation of novel exciton physics and the development of optoelectronic technologies with transformational capabilities. The Specific Aims of this short-term research effort are to: (1) identify growth conditions conducive to formation of particularly large or brightly luminescent MOCHA crystals; (2) demonstrate tunability of the band gap through functionalization of the organic ligand; and (3) characterize the structure and optical properties of newly synthesized MOCHAs. 2D MOCHAs will be synthesized by a vapor-phase chemical oxidation method and by a solution-phase biphasic reaction method, and the resulting crystals will be characterized using electron microscopy, X-ray crystallography, spectrophotometry, and photoluminescence spectroscopy. If successful, this project will introduce a fundamentally new class of hybrid organic-inorganic semiconductor materials with potential applications in lasers, photodetectors, photonic circuits, energy harvesting, and sensing technologies relevant to the ArmyÕs mission.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 09, 2020
- Source ID
- W911NF2010200
Entities
People
- William A. Tisdale
Organizations
- Army Contracting Command
- Massachusetts Institute of Technology
- United States Army