Postdoctoral Research Associate - 2D Materials & Devices

Postdoctoral Research Associate

The Center for Functional Nanomaterials (CFN) at Brookhaven is seeking a talented Postdoctoral Research Associate to conduct novel research investigating 2D material heterostructures for developing steep-slope transistors for energy-efficient microelectronics applications as a part of a DOE Microelectronics Science and Research Center (MSRC) project. You will explore the materials and device physics of 2D materials and associated heterostructures, such as those based on 2D transition-metal dichalcogenides (TMDCs), and perform nanofabrication and electrical characterization of 2D heterostructure devices using CFN's state-of-the-art Facilities, such as Quantum Materials Press (QPress) and Nanofabrication Facilities, to unravel the influences of atomic defects in 2D materials on the steep-slope device characteristics and performance.

This project also aims to investigate the integration of 2D-3D and 2D-membrane semiconductor heterostructures utilizing the materials provided by other external MSRC project team members. You will work under the supervision of Dr. Chang-Yong Nam (Electronic Nanomaterials Group).

Essential Duties and Responsibilities:

• Develop, fabricate, and characterize 2D heterostructures applicable to steep-slope electrical devices based on state-of-the-art 2D materials such as 2D TMDCs and graphene.
• Perform in-depth materials characterization on 2D materials, and electrically characterize the fabricated 2D devices, especially their transistor characteristics, as a function of temperature and the materials characteristics.
• Explore new materials, device structure & physics, and patterning methods for improving the performance of 2D steep-slope devices.
• Perform integration and nanofabrication of 2D-3D and 2D-membrane semiconductor heterostructures using the materials provided by the external MSRC project team members.
• Collaborate with scientific staff with diverse backgrounds including materials science, nanofabrication, and device fabrication and physics.
• Disseminate research findings via paper publications and external presentations.

Required Knowledge, Skills, and Abilities:

• Ph.D. in a relevant discipline (Materials Science, Physics, Electrical Engineering, or a related engineering discipline), conferred within the past five years or to be completed prior to the starting date.
• Demonstrated experimental expertise in 2D material heterostructure device fabrication and electrical characterization under various temperatures, including 2D materials mechanical exfoliation/transfer and low-temperature measurements using a cryostat, as well as associated materials and device physics.
• Demonstrated experimental experience in nanofabrication processes (e.g., electron-beam lithography, physical vapor deposition, atomic layer deposition etc.) and electrical device data analysis including transistor characteristics. You communicate effectively, verbally and in writing, evidenced by peer-reviewed publications and conference presentations/proceedings.
• Committed to creative and independent research, teamwork, and fostering an environment of safe scientific work practices.
• Committed to cultivating an inclusive and respectful workplace environment.

Preferred Knowledge, Skills, and Abilities:

• Hands-on experimental experience with 2D materials and heterostructure fabrication utilizing manual and/or automated 2D materials transfer and stacking systems.
• Hands-on experience in fabricating and electrically characterizing 2D materials devices beyond transistors and basic electrical measurements, such as memristors for neuromorphic computing applications and pulse-based electrical measurements.
• Experience in optimizing 2D materials device performance via engineering materials and device physics, including contact engineering.
• Experience or working knowledge of the synthesis of 2D materials and membrane semiconductors via remote epitaxy.
• Experience in materials characterization and analysis relevant for 2D materials, including but not limited to photoluminescence, Raman scattering, scanning probe microscopy, ultrafast optical spectroscopy, and X-ray photoelectron spectroscopy (XPS).
• Communicate…