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Opportunity at Air Force Research Laboratory (AFRL)

Functional 2D materials for flexible electronics

Location

Materials & Manufacturing, RX/Soft Matter Materials

RO# Location
13.25.04.C0662 Wright-Patterson AFB, OH 454337817

Advisers

Name E-mail Phone
Rao, Rahul rahul.rao.2@us.af.mil 864.650.4557

Description

This research opportunity involves novel functional two-dimensional (2D) materials and their heterostructures for electronics and optoelectronics applications. In recent years, the 2D materials landscape has expanded beyond transition metal chalcogenides (TMCs) to materials such as metal thiophosphates (e.g. CuInP2S6, CrTe2 and FePS3) that exhibit multiferroic properties at various temperatures and pressures. Some of these materials are also piezo- and pyro-electric, and can greatly expand the applications of 2D materials. This opportunity involves the mechanical exfoliation of these functional 2D materials, which will be synthesized in single-crystal form in the Air Force Crystal Growth Center at AFRL. The exfoliated mono- and few-layer functional 2D materials will be characterized through piezo-force microscopy and Raman spectroscopy at high pressure and low temperatures (down to 20 K). Other characterization methods include thermal, electrical and magnetic characterization in a PPMS, including pressure-dependent resistivity measurements. Device fabrication and measurement expertise is desired, as is the ability to transfer and make twisted heterostructures with other 2D materials such as graphene, hBN and TMCs. These research efforts to will complement ongoing work in the research team on chemical exfoliation and printing of flexible piezoelectric and ferroelectric devices.

Keywords:
2D materials, piezoelectric, ferroelectric, ferromagnetic, device measurement, phase transition, defects, Raman spectroscopy

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral and Senior applicants

Stipend

Base Stipend Travel Allotment Supplementation
$76,542.00 $4,000.00

$3,000 Supplement for Doctorates in Engineering & Computer Science

Experience Supplement:
Postdoctoral and Senior Associates will receive an appropriately higher stipend based on the number of years of experience past their PhD.

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