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Dr. Andrew B. Yankovich 
andrew.yankovich[at]chalmers.se
​
Biography
​Andy earned a dual Bachelors of Arts in physics and mathematics from Saint John’s University in Collegeville MN in 2005. In 2008, he earned a Bachelors of Science in materials science & engineering from the University of Minnesota. He then took his academic career to the University of Wisconsin – Madison, and obtained a Masters of Science in 2011 and a Ph.D. in 2015 in materials science with Professor Paul Voyles. He is now a postdoctoral research fellow in the Eva Olsson group.

Research Interests
     EM Characterization:
  • High-precision atomic-resolution Scanning Transmission Electron Microscope (STEM) imaging
  • Algorithm development for extracting quantitative information from EM data
  • Distortion-correction in STEM data
  • Monochromated Electron Energy Loss Spectroscopy (EELS)
  • EM data simulation:
              1) Atomic resolution STEM images
              2) Surface plasmon EELS spectra
     Materials Science:
  • Effects of atomic surface structure on the activity of nanocatalysts
  • Coupling and hybridization of nanoparticle surface plasmons
  • Defects and doping in ZnO and GaN thin films and nanowires
  • Composition variation and defects in InGaN quantum well based LED structures

Selected Publications
  • T. Nilsson Pingel#, M. Jørgensen#, A. B. Yankovich#, H. Grönbeck and E. Olsson, “Influence of Atomic Site-Specific Strain on Catalytic Activity of Supported Nanoparticles”, Nature Communications, accepted (2018). # equal contribution
  • A. B. Yankovich, R. Verre, E. Olsén, A. E. O. Persson, V. Trinh, G. Dovner, M. Käll, and E. Olsson, “Multidimensional Hybridization of Dark Surface Plasmons”, ACS Nano 11 (4) 4265-4274 (2017).
  • R. Verre, L. Shao, N. Odebo Länk, P. Karpinski, A. B. Yankovich, T. J. Antosiewicz, E. Olsson, and M. Käll, “Metasurfaces and colloidal suspensions composed of 3D chiral Si nanoresonators”, Advanced Materials, accepted (2017).
  • A. B. Yankovich, C. Zhang, A. Oh, T.J.A. Slater, F. Azough, R. Freer, S.J. Haigh, R. Willet, and P. M. Voyles, “Non-rigid registration and non-local principal component analysis to improve electron microscopy spectrum images”, Nanotechnology (Special issue on Big, Deep and Smart Data), 27:354001 (2016).
  • M. Yu, A. B. Yankovich, A. Kaczarowski, D. Morgan, and P. M Voyles, “Integrated Computational and Experimental Structure Refinement for Nanoparticles”, ACS Nano 10 (4) 4031-4038 (2016).
  • R. Jacobs, B. Zheng, B. Puchala, P. M. Voyles, A. B. Yankovich, and D. Morgan, “Counterintuitive Reconstruction of the Polar O-Terminated ZnO Surface with Zinc Vacancies and Hydrogen”, The Journal of Physical Chemistry Letters 7, 4483-4487 (2016).
  • A. B. Yankovich, B. Berkels, W. Dahmen, P. Binev, and P. M. Voyles, “High-precision scanning transmission electron microscopy at course pixel sampling for reduced electron dose”, Advanced Structural and Chemical Imaging, 1:2 (2015).
  • N. Mevenkamp, P. Binev, W. Dahmen, P. M. Voyles, A. B. Yankovich, and B. Berkels, “Poisson Noise Removal from High Resolution STEM images based on Periodic Block Matching”, Advanced Structural and Chemical Imaging 1:3 (2015).
  • A. B. Yankovich, B. Berkels, W. Dahmen, P. Binev, S. I. Sanchez, S. A. Bradley, A. Li, I. Szlufarska, and P. M. Voyles, “Picometer-Precision Analysis of Scanning Transmission Electron Microscopy Images of Platinum Nanocatalysts”, Nature Communications, 5:4155 (2014).
  • N. Mevenkamp, A. B. Yankovich, P. M. Voyles and B. Berkels, “Non-local Means for Scanning Trnasmission Electron Microscopy Images and Poisson Noise based on Adaptive Periodic Similarity Search and patch Regularization”, Vision, Modeling, and Visualization, page 63-70 (2014).
  • A. B. Yankovich, A. V. Kvit, X. Li, F. Zhang, V. Avrutin, H. Liu, N. Izyumskaya, Ü. Özgür, B. Van Leer, H. Morkoç, and P. M. Voyles, “Thickness variations and absence of lateral compositional fluctuations in aberration-corrected STEM images of InGaN LED active regions at low dose”, Microscopy and Microanalysis, 20, 3, 864-868 (2014).
  • A. B. Yankovich, B. Puchala, W. Fei, J.-H. Seo, D. Morgan, X. Wang, Z. Ma, A. V. Kvit, and P. M. Voyles, “Stable p-type conduction from Sb-decorated head-to-head basal plane inversion domain boundaries in ZnO nanowires”, Nano Letters, 12 (3) pp 1311-1316 (2012).
  • H. Y. Liu, N. Izyumskaya, V. Avrutin, Ü. Özgür, A. B. Yankovich, A. V. Kvit, P. M. Voyles, and H. Morkoç, “Donor Behavior of Sb in ZnO”, Journal of Applied Physics, 112(3), 033706 (2012).
  • H. Y. Liu, V. Avrutin, N. Izyumskaya, Ü. Özgür, A. B. Yankovich, A. V. Kvit, and P. M. Voyles, H. Morkoç, “Electron scattering mechanisms in GZO films grown on a-sapphire substrates by plasma-enhanced molecular beam epitaxy”, Journal of Applied Physics, 111, 103713 (2012).
  • A. V. Kvit, A. B. Yankovich, V. Avrutin, H. Liu, N. Izyumskaya, U. Ozgur, H. Morkoç, and P. M. Voyles, “Impurity Distribution and Microstructure of Ga-doped ZnO Films Grown by Molecular Beam Epitaxy”, Journal of Applied Physics, 112, 123527, (2012).
  • A. B. Yankovich, A. V. Kvit, X. Li, F. Zhang, V. Avrutin, H. Y. Liu, N. Izyumskaya, U. Ozgur, H. Morkoç, and P. M. Voyles, “Hexagonal-Based Pyramid Void Defects in GaN and InGaN”, Journal of Applied Physics, 111, 023517, (2011).
  • H. Y. Liu, X. Li, S. Liu, X. Ni, M. Wu, V. Avrutin, N. Izyumskaya, Ü. Özgür, A. B. Yankovich, A. V. Kvit, P. M. Voyles, and H. Morkoç, “InGaN based light emitting diodes utilizing Ga doped ZnO as a highly transparent contact to p-GaN”, Physica Status Solidi (C), 8, 1548-1551 (2011).

For more information, please download my CV here.
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