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Low Voltage Electron Microscopy for Soft Materials - Microscopy Today
A new Microscopy Today article by our team highlights how low‑voltage TEM delivers higher contrast for low‑Z, organic and polymer samples while keeping systems compact and easier to run. The authors explain why operating at 5-25 kV boosts elastic scattering and practical image contrast, how permanent magnet lenses enable a smaller, simpler column, and where low voltage helps reduce knock‑on damage in electrically conducting samples. The piece also lays out realistic limits such as resolution and thickness ranges, with a clear comparison to high‑voltage TEM.
If you work with soft materials or teaching labs and need nanoscale imaging without the footprint and infrastructure of conventional HV‑TEM, this overview is a useful starting point.
Vieira, D., Shahnam, E., Bacovsky, J., & Lapkovsky, J. (2025). Low-Voltage Electron Microscopy (LVEM): Part I — Benchtop and Compact TEMs with Heightened Contrast for Soft Materials. Microscopy Today, 33(4), 17–20. https://doi.org/10.1093/mictod/qaaf048
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