Center for Nanoscale Systems at Harvard University

How we use our JEOL 2100 TEM 

"The JEOL 2100 TEM at the Center for Nanoscale Systems at Harvard University is a workhorse of the facility, it serves not only as a foundation instrument that students initially get trained on but a heavily used research tool.  It is both the flexibility and reliability of the instrument that makes it one of our most heavily used instruments in the facility."

The flexibility comes from the ease of use, the ability to use multiple sample holders and the ability to run at 80, 100 and 200 KV accelerating voltages. The reliability is that the system is always ready to use, and should a student inadvertently dump the vacuum when loading a sample, the system can recover in about 30 minutes, which for a teaching center is ideal.  The microscope also serves as a first step for some users to progress to our JEOL ARM or shortly our new JEOL F200.

The instrument is also used as the base tool in the AP-291 Electron Microscopy course that is held every spring this course usually has about 18 students who wish to obtain a deep understanding of transmission electron microscopy, over the last ten years the system has trained literally hundreds of students and researchers.  The system also supports about 150 individual users researching a wide range of topics including batteries, graphene and two-dimensional materials, quantum materials, catalysts and optical materials, nano optics and a range of biological stained samples a huge range of projects and samples.

Harvard University Center for Nanoscale Systems (CNS); is a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the National Science Foundation under NSF award no. ECCS-2025158.

Professor David C. Bell

Associate Director Center for Nanoscale Systems, Harvard University


Harvard student Hunter Hawk seated at the 2100 TEM.