Research Infrastructure for the Study of Novel Atomically Layered 2D materials
Abstract
This proposal seeks to upgrade research infrastructure for the study of Òbeyond grapheneÓ 2D materials, and requests funding for: (a) A cryogen free Cryo Industries 9 Tesla Superconducting Magnet System with a Helium Condensing Chamber and accessories, (b) A Park Systems NX l 0 Complete AFM system, and (c) An Insight 178-265 GHz Backward Wave Oscillator microwave source with its IPPS 1-4 /60 power supply. The requested equipment/instrumentation is expected to advance, at Georgia State University (GSU), the fabrication and study of electrical and electro-optic devices realized using atomically thin 2D materials including graphene, boron nitride, and transition metal dichalcogenides such as molybdenum disulfide, molybdenum diselenide, tungsten disulfide, tungsten diselenide, and heterostructures of these 2D systems- material systems with desirable physical properties in the so-called new materials world "beyond graphene" As a consequence of the recent interest in such systems, there is now a need for (a) characterization of various 2 D materials, ( b) the stacking of different 2D materials in desired configurations, (c) the study of the obtained systems, (d) device fabrication, and (e) the measurement of their physical properties. The requested equipment/instrumentation will serve to increase the capability for such research work at Georgia State University. Specifically, the individual atomically layered 2D specimens and stacked heterostructures of 2D crystals, will characterized by atomic force microscopy using the requested Park Systems NXl0 AFM. Using existing facilities, 2D crystal heterostructures will be patterned into electrical devices by electron beam lithography, followed by contact metallization, and wire bonding. The quantum magnetotransport properties of such devices will be examined at low temperatures and high magnetic fields in the requested cryogen free Cryo-Industries 9 Tesla Superconducting Magnet System. This cryogen free system will help to considerably reduce the cost of such studies by avoiding the use of expensive and scarce liquid helium. High frequency properties of these fast 2D systems will also be examined using the requested Insight 178-265 GHz Backward Wave Oscillator. The synergy realized by the confluence of this instrumentation is expected to dramatically push forward the capability and effort at GSU in the area of 2D nano-electronics. The proposed site of instrumentation-location, Georgia State University (GSU), is a Title III Predominantly Black Institution, with a student body that is 59% female, 38% Black/African-American, 8% Hispanic /Latino, and 11% Asian/Native American/Pacific Islander. The Physic s and Astronomy Department at GSU involves graduate and undergraduate students in research from an early stage. Thus, the requested equipment/instrumentation will serve to provide to students, mostly from the under-represented sections of society in the physical sciences, valuable skills in areas at the intersection of nanoscience, electronic materials, low temperature physics, and microwave-terahertz technology. The Pl is well qualified for utilizing this type of research instrumentation due to his extensive experimental experience in characterization, material preparation, device fabrication, measurement, and study of the electrical- and microwave/terahertz photo-excited- properties of low dimensional electronic systems...
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 20, 2018
- Source ID
- W911NF1710475
Entities
People
- Ramesh Mani
Organizations
- Army Contracting Command
- Georgia State University
- Office of the Secretary of Defense