TEM

Transmission Electron Microscopes

The MCP houses a Thermo Scientific TF30 300 kV TEM that has 0.07 nm line and better than 0.2 nm point-to-point resolution. It is equipped with and Oxford light-element detector for quantitative X-ray analysis (EDX), scanning transmission electron microscope imaging with 0.17 nm resolution in both high-angle annular dark-field and bright field detectors. Added to this is an ASTAR scanning precession electron diffraction system can generate maps of crystal orientations down to 2 nm. The TF30 is also equipped with electron tomography holders and acquisition software. TEM holders available include double-tilt low-background holders for high-resolution TEM and EDX analysis, a heating and a liquid nitrogen cooled stage. A cryostage is available through the Integrated Imaging Center on campus.

Info

Location: Olin Hall

Manufacturer: Thermo Scientific TF30 300 kV TEM

Capabilities and Options: 0.7 nm line and better than 0.2 nm point-to-point resolution. 0.17 nm resolution in both high-angle annular dark-field and bright-filed detectors. Added to this is an ASTAR scanning precession electron diffraction and electron tomography.

Currently Being Installed: JEOL F200
Location: G73A

Coming in July: JEOL Grand ARM II
Location: G73B

Training

Location: Olin Hall 141

Contact information for training: Please contact Phil Chapman (pchapma2@jhu.edu) in the Department of Materials Science and Engineering.

Reservations: MCP iLab reservation system (Click Here).

Starting iLabs session:

QR code to start iLabs session

Images

Cryo TEM of Goethite (alpha-FeOOH) (Livi, K.J.T., Villalobos, M., Leary,R., Varela, M., Barnard, J., Villacís-García, M., Zanella, R. Goodridge, A., and Midgley, P. (2017) Crystal Face Distributions and Surface Site Densities of Two Synthetic Goethites: Implications for Adsorption Capacities as a Function of Particle Size. Langmuir, 33, 8924-8932, 10.1021/acs.langmuir.7b01814.)

Scanning Precession Electron Diffraction (SPED) analysis of Cu metal nanowires (Raciti, D., Cao, L., Livi, K.J.T., Rottmann, P., Tang, X., Li , C., Hicks , Z., Bowen, K., Hemker, K., Mueller, T., and Wang, C. (2017) Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires. ACS Catalysis, 7, 4467–4472, DOI: 10.1021/acscatal.7b01124.)