Transmission Electron Microscopy

Transmission Electron Microscopy or TEM is a powerful tool for imaging, spectroscopy, and diffraction analysis. A Transmission Electron Microscope is the most powerful microscopic instrument available and it is used to produce images of electron beam interaction with a sample. TEM performed in our testing labs helps to determine atomic-level structural characteristics of materials required for product design and application.

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Overview
Scope, Applications, and Benefits
Test Process
Specifications
Instrumentation
Results and Deliverables

Overview

TEM, or Transmission Electron Microscopy, is one of the most cutting-edge means of looking into the inner structure and shape of materials at extremely high levels of magnification, down to the nanometer level. This works by shooting a beam of high-energy electrons through an ultra-thin sample, and the interaction with the sample produces detailed images of what’s on the inside.

With the use of TEM, one can view crystal lattices, grain boundaries, dislocations, nanoparticles, and the phase distribution of the sample. This is because the wavelength of electrons is much shorter than the wavelength of light, which makes the resolution of the sample much higher than what’s achieved with light microscopy. This makes it one of the most indispensable tools in the fields of nanotechnology, materials science, and semiconductor physics.

Scope, Applications, and Benefits

Scope

Transmission Electron Microscopy (TEM) is a valuable tool for exploring the inner structure of materials at very high resolution. With TEM, we can look at the microstructure, crystallography, and even the size of particles and defects at the nanometre or even atomic level, and therefore it is extensively used in material science, nanotechnology, and semiconductor research.

Some of the materials on which TEM can be used are:

– Metals and Alloys
– Polymers
– Ceramics
– Nanomaterials
– Thin Films and Coatings
– Semiconductor Materials
– Biological Samples
– Composites

The basic function of TEM is to look at the microstructure, crystallography, and even the size of particles and defects at the nanometre or even the atomic level.

Applications

Nanomaterial characterization
Semiconductor device analysis
Thin film and coating evaluation
Crystal structure and lattice imaging
Particle size and morphology analysis
Defect and dislocation analysis in metals
Polymer morphology studies
Failure analysis of advanced materials

Benefits

Ultra-high spatial resolution imaging
Atomic and nanometre scale structural analysis
Precise particle size measurement
Detailed crystallographic information
Identification of internal defects and dislocations
High magnification capability (up to millions of times)
Supports advanced materials research
Provides detailed internal structural information

Test Process

Sample Preparation

The sample is thinned to an ultra-thin section (typically <100 nm).

Electron Beam Generation

A high-energy electron beam is generated and focused using electromagnetic lenses.

Electron Transmission

The electron beam passes through the thin specimen and interacts with the material’s internal structure.

Image Formation & Analysis

Transmitted electrons form a magnified image used to analyse crystal structure, defects, and morphology.

Technical Specifications

Parameter	Details
Resolution	Up to ~0.1 nm (atomic scale)
Magnification Range	10,000× to over 1,000,000×
Sample Thickness	Typically <100 nm
Imaging Modes	Bright field, dark field, high-resolution TEM
Additional Capability	Electron diffraction and elemental analysis (EDS)
Applicable Materials	Metals, polymers, ceramics, semiconductors, nanomaterials
Output Units	Nanometre-scale images and diffraction patterns

Instrumentation Used for Testing

Transmission electron microscope
Electron gun (thermionic or field emission source)
Electromagnetic lenses
Vacuum system
Sample holder and specimen stage
CCD/CMOS imaging detectors
Energy dispersive spectroscopy (EDS) detector
Image processing and analysis software

Results and Deliverables

High-resolution TEM images
Nanostructure and morphology analysis
Particle size distribution data
Crystal lattice imaging results
Electron diffraction pattern analysis
Defect and dislocation identification
Material microstructure reports

Why Choose Infinita Lab for Transmission Electron Microscopy?

At the core of this breadth is our network of 2,000+ accredited labs in the USA, offering access to over 10,000 test types. From advanced metrology (SEM, TEM, RBS, XPS) to mechanical, dielectric, environmental, and standardised ASTM/ISO testing, we give clients unmatched flexibility, specialisation, and scale. You’re not limited by geography, facility, or methodology—Infinita connects you to the right testing, every time.

Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote

Frequently Asked Questions

Transmission Electron Microscopy is an advanced imaging technique that uses a beam of electrons transmitted through an ultra-thin sample to produce extremely high-resolution images of a material’s internal structure at the nanometre or atomic scale.

TEM can analyze a wide range of materials including metals, alloys, polymers, ceramics, semiconductors, nanomaterials, thin films, coatings, and composite materials.

TEM can achieve extremely high resolution, often up to 0.1 nanometres, allowing researchers to observe crystal lattices, nanoparticles, and atomic arrangements.

The electron beam must pass through the sample to form an image. Therefore, specimens are typically prepared to be less than 100 nm thick so electrons can transmit through the material.

TEM can reveal microstructure, crystal structure, grain boundaries, defects, dislocations, particle size, morphology, and phase distribution within materials.