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• A sparse matrix–vector multiplication based algorithm for accurate density matrix computations on systems of millions of atoms

  Ghale, P. & Johnson, H. T., Jun 2018, In: Computer Physics Communications. 227, p. 17-26 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Atoms
  • multiplication
  • purification
  • Purification
  • Hamiltonians

• Atomic-scale thermocapillary flow in focused ion beam milling

  Das, K., Johnson, H. T. & Freunda, J. B., May 12 2015, In: Physics of fluids. 27, 5, 052003.

  Research output: Contribution to journal › Article › peer-review

  • Focused ion beams
  • Thin films
  • Ions
  • ion beams
  • Molecular dynamics

• Carrier transport in a quantum dot solar cell using semiclassical and quantum mechanical models

  Semichaevsky, A. V. & Johnson, H. T., 2013, In: Solar Energy Materials and Solar Cells. 108, p. 189-199 11 p.

  Research output: Contribution to journal › Article › peer-review

  • gallium arsenide
  • Carrier transport
  • Semiconductor quantum dots
  • Photocurrents
  • Solar cells

• Characterization and Control of Residual Stress and Curvature in Anodically Bonded Devices and Substrates with Etched Features

  Inzinga, R. A., Lin, T. W., Yadav, M., Johnson, H. T. & Horn, G. P., Jul 2012, In: Experimental Mechanics. 52, 6, p. 637-648 12 p.

  Research output: Contribution to journal › Article › peer-review

  • Residual stresses
  • Substrates
  • Photoelasticity
  • Silicon wafers
  • MEMS

• Control and quantification of residual stresses in anodically bonded MEMS structures

  Inzinga, R., Lin, T., Yadav, M., Johnson, H. T. & Horn, G. P., 2011, MEMS and Nanotechnology - Proceedings of the 2010 Annual Conference on Experimental and Applied Mechanics. Springer New York LLC, p. 269-273 5 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 2).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • MEMS
  • Residual stresses
  • Silicon wafers
  • Compressive stress
  • Tensile stress

• Controlling Rotation of Two-Dimensional Material Flakes

  Zhu, S., Pochet, P. & Johnson, H. T., Jun 25 2019, In: ACS Nano. 13, 6, p. 6925-6931 7 p.

  Research output: Contribution to journal › Article › peer-review

  • flakes
  • interlayers
  • Electronic equipment
  • electronics
  • Electronic properties

• Coupling point defects and potential energy surface exploration

  McGuigan, B. C., Johnson, H. T. & Pochet, P., Aug 2019, In: Computational Materials Science. 166, p. 1-8 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Potential energy surfaces
  • Potential Energy Surface
  • Point Defects
  • Point defects
  • point defects

• Critical thickness for interface misfit dislocation formation in two-dimensional materials

  McGuigan, B. C., Pochet, P. & Johnson, H. T., Jun 6 2016, In: Physical Review B. 93, 21, 214103.

  Research output: Contribution to journal › Article › peer-review

  • Dislocations (crystals)
  • boron nitride
  • Heterojunctions
  • Boron nitride
  • Graphite

• Diffusion induced stresses in buckling battery electrodes

  Bhandakkar, T. K. & Johnson, H. T., Jun 2012, In: Journal of the Mechanics and Physics of Solids. 60, 6, p. 1103-1121 19 p.

  Research output: Contribution to journal › Article › peer-review

  • buckling
  • electric batteries
  • Buckling
  • Electrodes
  • electrodes

• Direct Electrical Probing of Periodic Modulation of Zinc-Dopant Distributions in Planar Gallium Arsenide Nanowires

  Choi, W., Seabron, E., Mohseni, P. K., Kim, J. D., Gokus, T., Cernescu, A., Pochet, P., Johnson, H. T., Wilson, W. L. & Li, X., Feb 28 2017, In: ACS Nano. 11, 2, p. 1530-1539 10 p.

  Research output: Contribution to journal › Article › peer-review

  • gallium arsenide
  • Gallium arsenide
  • Nanowires
  • Doping (additives)
  • gallium arsenides

• Dynamical level-crossing model for the time-dependent electron emission from dielectric surfaces in symmetric dielectric barrier discharges

  Ghale, P. & Johnson, H. T., Apr 4 2019, In: Physical Review B. 99, 15, 155405.

  Research output: Contribution to journal › Article › peer-review

  • Electron emission
  • electron emission
  • Electrons
  • Plasmas
  • electrons

• Electron-dependent thermoelectric properties in Si/Si _{1- x}Ge _x heterostructures and Si _{1- x}Ge _x alloys from first-principles

  Hossain, M. Z. & Johnson, H. T., Jun 18 2012, In: Applied Physics Letters. 100, 25, 253901.

  Research output: Contribution to journal › Article › peer-review

  • thermal conductivity
  • Seebeck effect
  • alloying
  • electrons
  • oscillations

• Emergency ventilator for COVID-19

  King, W. P., Amos, J., Azer, M., Baker, D., Bashir, R., Best, C., Bethke, E., Boppart, S. A., Bralts, E., Corey, R. M., Dietkus, R., Durack, G., Elbel, S., Elliott, G., Fava, J., Goldenfeld, N., Goldstein, M. H., Hayes, C., Herndon, N., Jamison, S. & 35 others, Johnson, B., Johnson, H., Johnson, M., Kolaczynski, J., Lee, T., Maslov, S., McGregor, D. J., Milner, D., Moller, R., Mosley, J., Musser, A., Newberger, M., Null, D., O'Bryan, L., Oelze, M., O'Leary, J., Pagano, A., Philpott, M., Pianfetti, B., Pille, A., Pizzuto, L., Ricconi, B., Rubessa, M., Rylowicz, S., Shipley, C., Singer, A. C., Stewart, B., Switzky, R., Tawfick, S., Wheeler, M., White, K., Widloski, E. M., Wood, E., Wood, C. & Wooldridge, A. R., Dec 30 2020, In: PloS one. 15, 12, p. e0244963 e0244963.

  Research output: Contribution to journal › Article › peer-review

  • Mechanical Ventilators
  • Emergencies
  • Equipment and Supplies
  • Positive-Pressure Respiration
  • Adult Respiratory Distress Syndrome

• Enhancement of hydrogen microcombustion via field-emission dielectric barrier discharge

  Mackay, K. K., Freund, J. B. & Johnson, H. T., Aug 9 2018, In: Plasma Sources Science and Technology. 27, 8, 085007.

  Research output: Contribution to journal › Article › peer-review

  • field emission
  • hydrogen
  • augmentation
  • Joule heating
  • gas composition

• Erosive-thermal transition in high-flux focused ion beam nanomachining of surfaces

  Das, K., Freund, J. B. & Johnson, H. T., 2016, In: Extreme Mechanics Letters. 7, p. 121-125 5 p.

  Research output: Contribution to journal › Article › peer-review

  • Focused ion beams
  • Fluxes
  • Ions
  • Hot Temperature
  • Vaporization

• Field-emission plasma enhancement of H₂-O₂ micro-combustion

  MacKay, K. K., Johnson, H. T. & Freund, J. B., Apr 2020, In: Plasma Sources Science and Technology. 29, 4, 045014.

  Research output: Contribution to journal › Article › peer-review

  • field emission
  • actuation
  • augmentation
  • completeness
  • burners

• Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides

  Yoon, J., Li, L., Semichaevsky, A. V., Ryu, J. H., Johnson, H. T., Nuzzo, R. G. & Rogers, J. A., 2011, In: Nature communications. 2, 1, 343.

  Research output: Contribution to journal › Article › peer-review

  • Silicon solar cells
  • Silicon
  • Photons
  • concentrators
  • Waveguides

• Focused ion beam-induced droplet formation and motion

  Stout, J. M., Freund, J. B. & Johnson, H. T., Aug 28 2019, In: Journal of Applied Physics. 126, 8, 085107.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • ion beams
  • surface energy
  • incidence
  • continuums
  • dosage

• Grain boundary structure and migration in graphene via the displacement shift complete lattice

  Annevelink, E., Ertekin, E. & Johnson, H. T., Mar 2019, In: Acta Materialia. 166, p. 67-74 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Graphite
  • Graphene
  • Grain boundaries
  • Energy barriers
  • Elasticity

• Hydrogen Recombination Rates on Silica from Atomic-Scale Calculations

  Mackay, K. K., Freund, J. B. & Johnson, H. T., Oct 27 2016, In: Journal of Physical Chemistry C. 120, 42, p. 24137-24147 11 p.

  Research output: Contribution to journal › Article › peer-review

  • hydrogen recombinations
  • Silicon Dioxide
  • Molecular dynamics
  • Hydrogen
  • Silica

• Imbricate scales as a design construct for microsystem technologies

  Kim, S., Su, Y., Mihi, A., Lee, S., Liu, Z., Bhandakkar, T. K., Wu, J., Geddes, J. B., Johnson, H. T., Zhang, Y., Park, J. K., Braun, P. V., Huang, Y. & Rogers, J. A., Mar 26 2012, In: Small. 8, 6, p. 901-906 6 p.

  Research output: Contribution to journal › Article › peer-review

  • Optics and Photonics
  • Silicon
  • Microsystems
  • Printing
  • Technology

• Influence of Mn dopants on InAs/GaAs quantum dot electronic states

  Dasika, V. D., Semichaevsky, A. V., Petropoulos, J. P., Dibbern, J. C., Dangelewicz, A. M., Holub, M., Bhattacharya, P. K., Zide, J. M. O., Johnson, H. T. & Goldman, R. S., Apr 4 2011, In: Applied Physics Letters. 98, 14, 141907.

  Research output: Contribution to journal › Article › peer-review

  • quantum dots
  • electronics
  • matrices
  • scanning tunneling microscopy
  • thermodynamics

• Influence of wetting layers and quantum dot size distribution on intermediate band formation in InAs/GaAs superlattices

  Huang, S., Semichaevsky, A. V., Webster, L., Johnson, H. T. & Goldman, R. S., Oct 1 2011, In: Journal of Applied Physics. 110, 7, 073105.

  Research output: Contribution to journal › Article › peer-review

  • wetting
  • superlattices
  • quantum dots
  • quantum efficiency
  • spacing

• Ion impact crater asymmetry determines surface ripple orientation

  Hossain, M. Z., Das, K., Freund, J. B. & Johnson, H. T., Oct 10 2011, In: Applied Physics Letters. 99, 15, 151913.

  Research output: Contribution to journal › Article › peer-review

  • ion impact
  • craters
  • ripples
  • asymmetry
  • ions

• Ion impact energy distribution and sputtering of Si and Ge

  Hossain, M. Z., Freund, J. B. & Johnson, H. T., May 15 2012, In: Journal of Applied Physics. 111, 10, 103513.

  Research output: Contribution to journal › Article › peer-review

  • ion impact
  • energy distribution
  • sputtering
  • ions
  • energy

• Linking computational and experimental studies of III-V quantum dots for optoelectronics and photovoltaics

  Semichaevsky, A. V., Goldman, R. S. & Johnson, H. T., Sep 1 2011, In: JOM. 63, 9, p. 20-26 7 p.

  Research output: Contribution to journal › Review article › peer-review

  • Semiconductor quantum dots
  • Optoelectronic devices
  • Semiconductor materials
  • Semiconductor quantum wires
  • Quantum confinement

• Mechanisms of material removal and mass transport in focused ion beam nanopore formation

  Das, K., Freund, J. B. & Johnson, H. T., Feb 28 2015, In: Journal of Applied Physics. 117, 8, 085304.

  Research output: Contribution to journal › Article › peer-review

  • machining
  • ion beams
  • boiling
  • molecular dynamics
  • sequencing

• Moiré-templated strain patterning in transition-metal dichalcogenides and application in twisted bilayer MoS₂

  Zhu, S. & Johnson, H. T., Nov 28 2018, In: Nanoscale. 10, 44, p. 20689-20701 13 p.

  Research output: Contribution to journal › Article › peer-review

  • Transition metals
  • Electronic properties
  • Light absorption
  • Electronic structure
  • Monolayers

• Poisoning of Hydrogen Recombination on Silica Due to Water Adsorption

  Mackay, K. K., Johnson, H. T. & Freund, J. B., Aug 3 2017, In: Journal of Physical Chemistry C. 121, 30, p. 16366-16372 7 p.

  Research output: Contribution to journal › Article › peer-review

  • hydrogen recombinations
  • poisoning
  • Silicon Dioxide
  • Hydrogen
  • Silica

• Polarization-Resolved Imaging for Both Photoelastic and Photoluminescence Characterization of Photovoltaic Silicon Wafers

  Lin, T. W., Rowe, L. P., Kaczkowski, A. J., Horn, G. P. & Johnson, H. T., Oct 1 2016, In: Experimental Mechanics. 56, 8, p. 1339-1350 12 p.

  Research output: Contribution to journal › Article › peer-review

  • Photoluminescence
  • Silicon wafers
  • Polarization
  • Imaging techniques
  • Defect structures

• Polarized light emission from grain boundaries in photovoltaic silicon

  Lin, T. W., Rowe, L. P., Kaczkowski, A. J., Horn, G. P. & Johnson, H. T., Dec 1 2016, In: Extreme Mechanics Letters. 9, p. 397-404 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Light emission
  • Light polarization
  • Silicon
  • Grain boundaries
  • Photoluminescence

• Quantitative Infrared Photoelasticity of Silicon Photovoltaic Wafers Using a Discrete Dislocation Model

  Lin, T. W., Horn, G. P. & Johnson, H. T., Jan 1 2015, In: Journal of Applied Mechanics, Transactions ASME. 82, 1, 011001.

  Research output: Contribution to journal › Article › peer-review

  • Photoelasticity
  • photoelasticity
  • Strain energy
  • Infrared radiation
  • Photoluminescence

• Residual stresses at cavity corners in silicon-on-insulator bonded wafers

  Lin, T. W., Elkhatib, O., Makinen, J., Palokangas, M., Johnson, H. T. & Horn, G. P., Sep 1 2013, In: Journal of Micromechanics and Microengineering. 23, 9, 095004.

  Research output: Contribution to journal › Article › peer-review

  • Silicon
  • Residual stresses
  • Oxides
  • Photoelasticity
  • Profilometry

• Rotational stability of twisted bilayer graphene

  Bagchi, S., Johnson, H. T. & Chew, H. B., Feb 1 2020, In: Physical Review B. 101, 5, 054109.

  Research output: Contribution to journal › Article › peer-review

  • Graphite
  • Graphene
  • flakes
  • Energy barriers
  • graphene

• Steady flame streets in a non-premixed microburner

  Mackay, K. K., Johnson, H. T. & Freund, J. B., Aug 2019, In: Combustion and Flame. 206, p. 349-362 14 p.

  Research output: Contribution to journal › Article › peer-review

  • streets
  • Quenching
  • flames
  • quenching
  • Fuel burners

• Strain-Controlled Dynamic Rotation of Twisted 2D Atomic Layers for Tunable Nanomechanical Systems

  Bagchi, S., Johnson, H. T. & Chew, H. B., Nov 25 2020, In: ACS Applied Nano Materials. 3, 11, p. 10878-10884 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Lattice mismatch
  • Energy barriers
  • Potential energy
  • Fabrication
  • Temperature

• Strain Modulation of Graphene by Nanoscale Substrate Curvatures: A Molecular View

  Zhang, Y., Heiranian, M., Janicek, B., Budrikis, Z., Zapperi, S., Huang, P. Y., Johnson, H. T., Aluru, N. R., Lyding, J. W. & Mason, N., Mar 14 2018, In: Nano letters. 18, 3, p. 2098-2104 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Graphite
  • Graphene
  • graphene
  • Modulation
  • curvature

• Strain Relaxation in CVD Graphene: Wrinkling with Shear Lag

  Bronsgeest, M. S., Bendiab, N., Mathur, S., Kimouche, A., Johnson, H. T., Coraux, J. & Pochet, P., Aug 12 2015, In: Nano Letters. 15, 8, p. 5098-5104 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Strain relaxation
  • Graphite
  • wrinkling
  • Graphene
  • Chemical vapor deposition

• Theory for optimal design of waveguiding light concentrators in photovoltaic microcell arrays

  Semichaevsky, A. V., Johnson, H. T., Yoon, J., Nuzzo, R. G., Li, L. & Rogers, J., Jun 10 2011, In: Applied Optics. 50, 17, p. 2799-2808 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Solar concentrators
  • concentrators
  • Fluorophores
  • solar collectors
  • self absorption

• Toward Moiré engineering in 2D materials via dislocation theory

  Pochet, P., McGuigan, B. C., Coraux, J. & Johnson, H. T., Dec 2017, In: Applied Materials Today. 9, p. 240-250 11 p.

  Research output: Contribution to journal › Article › peer-review

  • Defects
  • Electronic structure
  • Mechanics

• Towards do-it-yourself planar optical components using plasmon-assisted etching

  Chen, H., Bhuiya, A. M., Ding, Q., Johnson, H. T. & Toussaint, K. C., Jan 27 2016, In: Nature communications. 7, 10468.

  Research output: Contribution to journal › Article › peer-review

  • Plasmons
  • Nanoantennas
  • Optical Devices
  • Etching
  • plasmons