Dr. Spokoyny’s expertise lies in the areas of spectroscopy, microscopy, semiconductors, nanophotonics and nonlinear optics. Trained as a physical chemist, his research encompasses areas of physical and electrical characterization of nanomaterials, visible and infrared spectroscopy, and high-resolution fluorescence microscopy. He has worked extensively on design and development of optical systems for ultrafast spectroscopy, single molecule confocal microscopy, cryogenic characterization of the thermoelectric properties of semiconductors and has a wide range of experience with laser technologies, equipment automation and a range of analytical chemistry methods.
As a physical chemist, Dr. Spokoyny has gained expertise in characterizing emerging materials using the 3-ω thermal conductivity technique, time-domain thermo-reflectance (TDTR), Fourier-transform infrared spectroscopy (FTIR), photon-correlation Fourier spectroscopy (PCFS) in the visible and the short-wave infrared, Raman microscopy, transient absorption (TA), confocal microscopy, UV-visible absorption spectroscopy (UV-VIS), scanning electron microscopy (SEM) and atomic force microscopy (AFM).
Before joining Exponent, Dr. Spokoyny was a postdoctoral fellow in the Chemistry department of the Massachusetts Institute of Technology (MIT), where he worked on characterizing single molecule properties of short-wave infrared nanomaterials in collaboration with the MIT Lincoln Lab. He also studied fluorescent properties of defects in two-dimensional wide-bandgap semiconductors for emerging quantum information applications. As part of his graduate work at Northwestern University, Dr. Spokoyny developed and utilized nonlinear laser spectroscopy methods to study energy transport in laser dye molecules and colloidal semiconductor quantum dots. Dr. Spokoyny also has experience characterizing low-temperature properties of thin-film nanoscale Bismuth-based semiconductors such as their thermal conductivity, electrical resistivity and the Seebeck coefficient.
CREDENTIALS & PROFESSIONAL HONORS
- Ph.D., Chemistry, Northwestern University, 2017
- B.A., Physics, University of Chicago, 2010
Spokoyny B, Utzat H, Moon H, Grosso G, Englund D, Bawendi MG. Effect of spectral diffusion on the coherence properties of single quantum emitters in hexagonal boron nitride. In review, 2019.
Utzat H, Sun W, Kaplan AEK, Krieg F, Ginterseder M, Spokoyny B, Klein ND, Shulenberger KE, Perkinson CF, Kovalenko MV, Bawendi, MG. Coherent single photon emission from colloidal lead halide perovskite quantum dots. Science 2019; 363:1068–1072.
Bertram SN, Spokoyny B, Franke D, Caram JR, Yoo JJ, Murphy RP, Grein ME, Bawendi MG. Single nanocrystal spectroscopy of shortwave infrared emitters. ACS Nano 2019; 13:1042–1049.
Nah S, Spokoyny B, Jiang X, Stoumpos C, Soe CMM, Kanatzidis MG, Harel E. Transient sub-bandgap states in halide perovskite thin films. Nano Letters 2018; 18:827–831.
Nah S, Spokoyny B, Stoumpos C, Soe CMM, Kanatzidis MG, Harel E. Spatially segregated free-carrier and exciton populations in individual lead halide perovskite grains. Nature Photonics 2017; 11:285–288.
Spencer AP, Spokoyny B, Ray S, Sarvari F, Harel E. Mapping multidimensional electronic structure and ultrafast dynamics with single-element detection and compressive sensing. Nature Communications 2016; 7:10434.
Spencer AP, Spokoyny B, Harel E. Enhanced-resolution single-shot 2DFT spectroscopy by spatial spectral interferometry. J Phys Chem Lett 2015; 6:945–950.
Spokoyny B, Koh CJ, Harel E. Stable and high-power few cycle supercontinuum for 2D ultrabroadband electronic spectroscopy. Optics Letters 2015; 40:1014–1017.
Spokoyny B, Harel E. Mapping the vibronic structure of a molecule by few-cycle continuum two-dimensional spectroscopy in a single pulse. J Phys Chem Lett 2014; 5:2808–2814.
Kovalenko MV, Spokoyny B, Lee JS, Scheele M, Weber A, Perera S, Landry D, Talapin DV. Semiconductor nanocrystals functionalized with antimony telluride zintl Ions for nanostructured thermoelectrics. Journal of the American Chemical Society 2010; 132:6686–6695.
Spokoyny B, Bertram SN. Poster Presentation. Gordon Research Conference on Colloidal Semiconductor Nanocrystals, Bryant University 2018.
Spokoyny B. Oral Presentation. Tenth International Conference on Quantum Dots, University of Toronto 2018.
Spokoyny B. Poster Presentation. The XVIIth International Conference on Time-Resolved Vibrational Spectroscopy, University of Wisconsin-Madison 2015.
Postdoctoral Researcher, Massachusetts Institute of Technology (MIT), 2017-2019.
Graduate Researcher, Northwestern University, 2011-2017.
Undergraduate Researcher, The University of Chicago, 2006-2011.