portrait photo

Jonathan D Poplawsky

Senior Research Staff

Jonathan Poplawsky received his Ph.D. in Physics at Lehigh University in 2012 where he built an apparatus capable of a simultaneous cathodoluminescence and photoluminescence experiment. During his studies, he received the Lehigh University “Graduate Student Teaching Assistant Award” and founded the Lehigh University Physics Graduate Student Association. Following his graduate studies, Jonathan worked as post-doctoral research associate in the Scanning Transmission Electron Microscopy (STEM) group at Oak Ridge National Laboratory (ORNL) under Stephen J. Pennycook. Following his postdoctoral studies, Jonathan received a strategic hire award from ORNL to implement new capabilities within the Center for Nanophase Materials Sciences Atom Probe Tomography (APT) laboratory, and expand the lab's research beyond metallic alloys, although alloys are still of great interest. His main research interests are focused on determining interfacial chemistry at the atomic level with the end goal of improving energy materials using Atom Probe Tomography. The material systems he works on are very diverse, including thin film solar cells, light-emitting diodes, battery technology, high temperature Al alloys, and energy efficient steels. Jonathan also excels with using focused ion beam, electron beam induced current, electron back scatter diffraction, cathodoluminescence, photoluminescence, and scanning transmission electron microscopy techniques.

2022-present    Senior R&D Staff Scientist, Oak Ridge National Laboratory 
2017-2022    R&D Staff Scientist, Oak Ridge National Laboratory 
2014-2017    (Strategic Hire) R&D Associate Scientist, Oak Ridge National Laboratory
2012-2014    Post-doctoral Research Associate, University of Tennessee
2007-2012    Research Assistant, Lehigh University

2023    DOE EERE VTO team award
2023    Excellence in Reviewing Award, Scripta Materialia
2022    R&D 100 award “DuAlumin-3D: An Additively Manufactured Dual-Strengthened Aluminum Alloy Designed for Extreme Creep and Fatigue Resistance”
2021    ORNL Outstanding Scholarly Output Award
2021    Outstanding CNMS Staff Member Award
2019    ORNL Early Career Researcher award in Science and Technology
2018    Published a DOE top 5 research highlight for 2018
2017    Most Notable CNMS User Project, ORNL CNMS
2014    Ceramographic Exhibit 2nd place award, SEM, American Ceramic Society
2012    National Research Council Fellowship, Navy Research Laboratory
2011     Best Student Presentation Award, MAS CL Topical Conference
2010-2011    Sherman Fairchild Fellowship in Semiconductor Studies, Lehigh University
2008     Graduate Student Teaching Assistant Award, Lehigh University
2007     Excellence in Physics Award, University of Scranton
2007     Sigma Pi Sigma Honors, University of Scranton
2003-2007     Loyola Scholarship, University of Scranton

Local Electrode Atom Probe (LEAP) 4000XHR

FEI Nova 200 Dual Beam SEM/FIB

2020                     Yang Y, Pint B, Poplawsky JD, and Tan L, “Ta-Containing Fe-Ni Based Superalloys with High Strength and Oxidation Resistance for High-temperature Applications,” Docket No. 6321-508 (157379.08301).