PolyAPT is involved in several projects centered on atomic-level studies to guide and accelerate the development of novel and enhanced functionalities relevant to a variety of applications. These applications include information technology, photonics, quantum technologies, clean energy, aerospace and transportation, metallurgy, and health and bio-integrated technologies. Below, are provided a few examples of ongoing activities.

Instrumentation at PolyAPT
 

Infrastructure manager: Sebastian Koelling, sebastian.koelling@polymtl.ca

PolyAPT hosts the Cameca Invizo 6000 Atom Probe Tomograph. The Invizo 6000 is an ultra wide field of view tomograph that typically images more than 90% of the volume of the sample. This allows for a field of view of at least 200 nm on almost all materials. Samples are typically prepared using a FIB/SEM Dual Beam tool to transfer a piece of the material under investigation to the top of a tungsten wire and then sharpen it into a tip with a radius of less than 150 nm.

This technology can be harnessed to advance design of next-generation semiconductors and quantum materials sensitive to atomic variations and impurities. The atom probe also opens the door to greater understanding of fine structures, such as those inside batteries, or biological tissues like bone.

Specifications

• Ultra wide field of view imaging more than 90% of the specimen volume
• FoV between 100-250 nm
• Laser pusling with a deep UV-laser with sub 10ps pulses, 257.5nm wavelength and dual beam illumination
• Mass resolution m/Δm ~ 1000
• Single Ion detection efficiency ~ 65%
• Acquisition rate of up to 50 million ions per hour
• UHV analysis chamber with a pressure of less than 10 torr
• Specimen cooling down to 25K during analysis

Team
 

Oussama Moutanabbir

Scientific Director
Department of Engineering Physics
Polytechnique Montreal

Sebastian Koelling

Facility Manager
Department of Engineering Physics
Polytechnique Montreal

PARTNERS

SPONSORS