Steven R. Spurgeon, Ph.D.

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FY22 Research Highlights

I’m pleased to share our research highlights from Fiscal Year 2022. The year was remarkably successful thanks to the hard work of our team, students, and many collaborators. Among our dozen studies, we developed a first-of-its-kind automated electron microscope, designed new human-computer interfaces for microstructural analytics, examined catalytic behavior of oxides, mapped oxygen migration, and much more. Our work is informing the design of energy storage materials, next-generation quantum computers, the nuclear fuel cycle, and catalysts.

I’m especially thankful to work with a great team of scientists at PNNL, including Sarah Akers, Bethany Matthews, Christina Doty, Derek Hopkins, Matthew Olszta, Kayla Yano, Kevin Fiedler, Michel Sassi, Sandy Taylor, Le Wang, Yingge Du, Tiffany Kaspar, Marjolein Oostrom, Pedro Rodriguez, Jenna Pope, and many more. We look forward to many more exciting discoveries in the coming year!

The full list of FY22 publications includes:

  • Thapa, S., Provence, S., Gemperline, P.T., Matthews, B.E., Spurgeon, S.R., Battles, S., Heald, S.M., Kuroda, M.A., and R.B. Comes. “Surface stability of SrNbO3+δ grown by hybrid molecular beam epitaxy.” APL Materials. (2022). DOI:10.1063/5.0097699 [Download PDF]

  • Wang, L., Zhao, J., Kuo, C-T., Matthews, B.E., Oostrom, M.T., Spurgeon, S.R., Bowden, M.E., Lee, S-J., Lee, J-S., Guo, E-J., Wang, J., Chambers, S.A., and Y. Du. “Synthesis and electronic properties of epitaxial SrNiO3/SrTiO3 superlattices.” Physical Review Materials. (2022). DOI:10.1103/PhysRevMaterials.6.075006 [Download PDF]

  • Kaspar, T.C., Hatton, P.J., Yano, K.H., Taylor, S.D., Spurgeon, S.R., Uberuaga, B.P., and D.K. Schreiber. “Adatom-driven oxygen intermixing during the deposition of oxide thin films by molecular beam epitaxy.” Nano Letters. (2022). DOI:10.1021/acs.nanolett.2c01678 [Download PDF]

  • Olszta, M., Hopkins, D., Fiedler, K.R., Oostrom, M., Akers, S., and S.R. Spurgeon. “An automated scanning transmission electron microscope guided by sparse data analytics.” Microscopy and Microanalysis. (2022). DOI:10.1017/S1431927622012065 [Download PDF]

  • Sassi, M., Spurgeon, S.R., Matthews, B.E., Devaraj, A. and D.J. Senor. “First-principles study of tritium trapping in γ-LiAlO2 nanovoids.” Journal of Physical Chemistry C. (2022). DOI:10.1021/acs.jpcc.2c00381[Download PDF]

  • Bredar, A.R.C., Blanchet, M.D., Burton, A.R., Matthews, B.E., Spurgeon, S.R., Comes, R.B., and B.H. Farnum.“Oxygen reduction electrocatalysis with epitaxially grown spinel MnFe2O4and Fe3O4.” ACS Catalysis. 12 (2022): 3577–3588. DOI:10.1021/acscatal.1c05172 [Download PDF]

  • Chambers, S.A., Chrysler, M., Ngai, J., Lee, T.-L., Gabel, J., Matthews, B.E., Spurgeon, S.R., Bowden, M.E., Zhu, Z., and P.V. Sushko. “Mapping hidden space-charge distributions across crystalline metal oxide/group IV semiconductor interfaces.'' Physical Review Materials. (2022). 6 (2022): 015002. DOI:10.1103/PhysRevMaterials.6.015002 [Download PDF]

  • Doty, C., Gallagher, S., Cui, W., Chen, W., Bhushan, S., Oostrom, M., Akers, S., and S.R. Spurgeon. “Design of a graphical user interface for few-shot machine learning-based classification of electron microscopy data.” Computational Materials Science. 203.15 (2022): 111121. DOI:10.1016/j.commatsci.2021.111121 [Download PDF]

  • Burton, A., Paudel, R., Matthews, B.E., Sassi, M., Spurgeon, S.R., Farnum.B.H., and R.B. Comes. “Thickness dependent OER electrocatalysis of epitaxial LaFeO3 thin films.” Journal of Materials Chemistry A. 10 (2021): 1909-1918. DOI:10.1039/D1TA07142D [Download PDF]

  • Yano, K., Kohnert, A., Kaspar, T.C., Taylor, S.D., Spurgeon, S.R., Kim, H., Wang, Y., Uberuaga, B.P., and D.K. Schreiber. “Radiation enhanced anion diffusion in chromia.” Journal of Physical Chemistry C. 125.50 (2021): 27820–27827. DOI:10.1021/acs.jpcc.1c08705 [Download PDF]

  • Akers, S., Kautz, E., Trevino-Gavito, A., Olszta, M., Matthews, B., Wang, L., Du, Y., and S.R. Spurgeon. “Rapid and flexible segmentation of electron microscopy data using few-shot machine learning.“ npj Computational Materials. 7 (2021): 187. DOI:10.1038/s41524-021-00652-z [Download PDF]

  • Chrysler, M., Gabel, J., Lee, T.-L., Penn, A., Matthews, B.E., Kepaptsoglou, D., Ramasse, Q., Paudel, J.R., Sah, R.K., Grassi, J.D., Zhu, Z., Gray, A.X., LeBeau, J.M., Spurgeon, S.R., Chambers, S.A., Sushko, P.V., and J.H. Ngai. “Tuning band alignment at a semiconductor-crystalline oxide heterojunction via electrostatic modulation of the interfacial dipole.” Physical Review Materials. 5 (2021): 104603. DOI:10.1103/PhysRevMaterials.5.104603 [Download PDF]

Steven S