Why HRTEM Sees Atoms | TEM vs HRTEM Explained Visually

Why can HRTEM image atomic lattices while TEM cannot?
This video explains the real physical reason behind atomic-scale imaging using a clear TEM vs HRTEM visual comparison.

Transmission Electron Microscopy (TEM) and High-Resolution Transmission Electron Microscopy (HRTEM) are powerful techniques used to study materials at the nanoscale. Although both use high-energy electrons as probes, their imaging mechanisms and achievable resolution are fundamentally different.

In this video, we compare TEM and HRTEM in a clear, visual way to explain why HRTEM is capable of resolving atomic lattices while conventional TEM mainly reveals particle morphology, size, and shape. You will see how electron scattering, phase contrast, and diffraction effects influence image formation in both techniques.

TEM is widely used to study nanoparticle size, morphology, grain boundaries, defects, and overall microstructure. HRTEM goes further by exploiting coherent electron waves to image lattice fringes, allowing direct visualization of atomic planes and crystal structures.

This video is useful for:
• Materials science and nanotechnology students
• Researchers learning electron microscopy fundamentals
• Anyone confused about TEM vs HRTEM differences
• Understanding atomic-scale imaging without heavy mathematics

Topics covered include TEM vs HRTEM resolution limits, atomic lattice imaging, electron diffraction principles, and why HRTEM can reach sub-angstrom resolution.
#ElectronMicroscopy #HRTEM #Nanotechnology #MaterialsScience #TEM