• Atomic scale HAADF-STEM images

    Left: The dumbbell structure of a [110]-oriented Si crystal. Right: SrTiO3 [001] where Sr atoms are brighter and Ti are darker.

  • Atomic EDS mapping on strontium titanate

    Atomically resolved EDS mapping on a [001]-oriented SrTiO3 crystal. The Sr and Ti sites are clearly identified.

  • Tomography reconstruction of Ni-Si nanoparticles

    Reconstruction was from a tilting series (-70 to 70 degrees) of HAADF images and EDS maps showing the 3D structure of Ni and Si particles.

Thermo Fisher Talos F200X G2 S/TEM

  • Conventional TEM bright-field/dark-field imaging, electron diffraction, and high-resolution TEM
  • Z-contrast and high-resolution STEM imaging
  • Fast EDS elemental mapping
  • Tilting series with TEM/STEM/EDS capability and 3D reconstruction
  • Differential phase contrast (DPC) imaging and Lorentz microscopy for magnetic or polarized materials

Tao Ma

Room G024 (Remote control available)

Publications, presentations, and posters resulting from work on this instrument should state: “The authors acknowledge the financial support of the University of Michigan College of Engineering and technical support from the Michigan Center for Materials Characterization.“

  • Accelerating Voltage
    • 80 and 200kV
  • Electron Source
    • X-FEG high-brightness Schottky type field emission gun
  • Vacuum
    • <1.2 × 10-5 Pa (oil-free)
  • Resolution
    • CTEM point resolution 0.25 nm, line resolution 0.12 nm, and information limit <0.12 nm with 0.10 nm attainable.
    • STEM <0.16 nm
  • EDS
    • Super-X window-less detector consists of four equal crystals with an active area of 4 × 30 mm2 and a solid angle of 0.9 srad, detecting all elements down to and including boron.
  • EELS System
    • Gatan Continuum S spectrometer with ultra-fast electrostatic shutter and high-speed DualEELS (energy resolution: 0.8 eV)
  • Image Acquisition & Analysis System
    • Gatan One View bottom mount camera for high-speed 4k × 4k imaging with in-situ capability
    • Simultaneous STEM HAADF/DF4/DF2/BF acquisition
    • Segmented DF4 detector for DPC imaging with live i-DPC and d-DPC
  • Lorentz Microscopy
    • Built-in Lorentz lens in the lower pole piece of the objective lens enables to image magnetic structures
    • In-situ observation under controllable magnetic field along the optical axis
  • Compatible Sample Holders
    • CompuStage single-tilt (x = ±35°) holder
    • High-visibility low-background double-tilt (x = ±35°, y = ±30°) holder for optimized EDS acquisition
    • Fischione Tomography holder Model 2020 with high-tilt angles (x = ±70°)
    • Gatan Elsa cryo-transfer holder allows >9 h below -145 °C and >8 h of stable, high-resolution imaging with high-tilt capability (x = ±70°)
    • Protochips Fusion Select double-tilt (x = ±30°, y = ±18°) MEMS-based heating and biasing holder with AXON drift-correction system
  • Other Accessories
    • Velox software for STEM/DPC imaging and EDS acquisition
    • Automatic acquisition of tilting series for tomography with EDS capability
    • AutoSTEM automated alignment software for the correction of focus and astigmatism correction in STEM up to ca. 1 Mx magnification
    • TEM scripting for controlling the microscopy by a user application
  1. The Role of Co-injected Helium on Swelling and Cavity Evolution at High Damage Levels in Ferritic-Martensitic Steels, D. Woodley, S. Taller, Z. Jiao, K. Sun, G.S. Was, Journal of Nuclear Materials, 550, 152912, 2021
  2. IASCC of neutron irradiated 316 stainless steel to 125 dpa, D. Du, K. Sun, G.S. Was, Materials Characterization, 173, 110897, 2021
  3. Microstructure and Mechanical Properties of Nanoscale Cu/(Ta50Nb25Mo25) Multilayers, L. Jiang, M. Powers, Y. Cui, B.K. Derby, A. Misra, Materials Science and Engineering A, 799, 140200, 2021
  4. Area-Selective Atomic Layer Deposition Patterned by Electrohydrodynamic Jet Printing for Additive Manufacturing of Functional Materials and Devices, T.H. Cho, N. Farjam, C.R. Allemang, C.P. Pannier, E. Kazyak, C. Huber, M. Rose, O. Trejo, R.L. Peterson, K. Barton, N.P. Dasgupta, ACS Nano, 14(12), 17262-17272, 2020
  5. On the Thermal Stability of Dislocation Cellular Structures in Additively Manufactured Austenitic Stainless Steels: Roles of Heavy Element Segregation and Stacking Fault Energy, P. Deng, H. Yin, M. Song, D. Li, Y. Zheng, B.C. Prorok, X. Lou, JOM, 72, 4232-4243, 2020
  6. Fast Organic Vapor Phase Deposition of Thin Films in Light-Emitting Diodes, B. Qu, K. Ding, S. Hou, S. Morris, M. Shtein, S.R. Forrest, ACS Nano, 14(10), 14157-14163, 2020
  7. Omnidispersible Microscale Colloids with Nanoscale Polymeric Spikes, D.G. Montjoy, H. Hou, J.H. Bahng, N.A. Kotov, Chem. Mater., 32(23), 9897-9905, 2020