Initial Publication Date: May 20, 2021

NanoEarth JEOL JEM 2100 at Virginia Tech

Virginia Tech

Contact Information

NanoEarth (National Center for Earth and Environmental Nanotechnology Infrastructure)




Instrument Type


The JEOL JEM 2100 TEM is an analytical transmission electron microscope using a LaB6 electron source. This TEM was installed in 2016 for general day-to-day research and research training. TEM has been heavily used due to its STEM-EDS mapping (maximum resolution 5nm) and polymeric and biological samples imaging capabilities.

  • TEM transmission electron microscopy


Applications include:

  • Identification of phases
  • Composition (elemental) of phases
  • Elemental mapping, compositional zoning
  • Trace element analysis
  • Structure (atomic) of minerals (diffraction methods)
  • Depth profiling (chemical stratigraphy, nanometer scale)
  • Imaging (size, shape, morphology)
  • Crystallographic orientation
  • Distribution in matrix (disseminated, aggregated...)
  • Textural relations (intergrowths, overgrowths, epitaxial...)
  • Interfaces

Typical Use:

Typical applications for this instrument are the imaging of soft and hard materials, diffraction analysis of crystalline materials, STEM-EDS chemical mapping, and general research.

Conditions for Use:

  • Submitted samples will be analyzed on a contract basis (i.e. lab personnel will do the work)
  • Visitors are invited to work in the lab to work with lab personnel
  • Visitors are invited to work in the lab to design and do the work yourself
  • Users who wish to use an NCFL instrument without the supervision of an NCFL instrument specialists must complete the appropriate Training Sessions and become an approved operator. Training Sessions cover instrument operation and safety procedures as well as techniques for obtaining useful information. Training sessions are scheduled by appointment with an instrument specialist and include charges for the instrument and staff time. The total time needed for an individual to show competence on the instrument will be determined by the Instrument Specialist.

User Fees:

Current instrument rates available online: ( This site may be offline. )

Instrument Priorities:

Remote Use:

Remote operation is not possible.

Sample Preparation:

Sample preparation is dependent on the specific sample and can be discussed with an instrumentation specialist.

Standard Collections/Lab Blanks:


Educational Use:

NanoEarth loves to host groups for demonstrations, workshops, tours, and other educational uses of the lab. Please contact to discuss opportunities.

  • Class demonstrations are available for undergraduates
  • Class demonstrations are available for K-12
  • Undergraduate student research projects are invited
  • Graduate student research projects are invited
  • Tutorials and other educational materials related to the lab are available