Probing beam sensitive materials while preserving sample integrity with 4D-STEM and EELS
Hybrid pixel imaging: Bridging frame-based and event-based detection
A three-part webinar series
Join us for a three-part webinar series exploring the Merlin T4 from Quantum Detectors, the first hybrid pixel detector to combine frame-based and event-based imaging in a single system. From capturing elusive skyrmions to enabling ultrafast 4D-STEM and ptychography, this series showcases how hybrid detection is set to transform the future of transmission electron microscopy (TEM).
- Part 1: How to capture skyrmions and beam sensitive materials with precision | Date: August 19 at 16:00 BST / 17:00 CEST / 11:00 EDT / 08:00 PDT
- Part 2: Next-gen 4D-STEM and quantitative imaging with Timepix4 | Date: August 27 at 16:00 BST / 17:00 CEST / 11:00 EDT / 08:00 PDT
- Part 3: Probing beam sensitive materials while preserving sample integrity with 4D-STEM and EELS | Date: September 22 at 13:00 BST / 14:00 CEST / 08:00 EDT / 05:00 PDT
Monday, September 22, at 13:00 BST | 14:00 CEST | 08:00 EDT | 05:00 PDT
Understanding and controlling impurities and defects in molecular materials is critical for driving innovation in organic photovoltaics, catalytic systems, and novel composites. However, the extreme beam sensitivity of these materials poses significant challenges for probing with conventional transmission electron microscopy (TEM) techniques, often limiting resolution and damaging sample integrity.
Join Dr Sean Collins, University of Leeds, and Kumar Vaidikar, Quantum Detectors, as they unveil cutting-edge low-dose 4D-STEM and single-atom electron energy loss spectroscopy (EELS) methods, that push measurements to the very limit of detection while preserving sample integrity. Discover how these advanced methods are revolutionizing microstructural analysis while unlocking new pathways to optimize functional performance in sustainable energy, catalysis, and advanced materials.
Key learning objectives:
- Learn how low-dose 4D-STEM enables dislocation analysis in molecular crystals at electron fluences of 5–10 e– Å⁻².
- Understand how single-atom EELS can distinguish impurities from active sites in single-atom catalysts.
- Explore strategies for probing nanoscale chemical heterogeneity and structural disorder in beam-sensitive materials.
- See how next-generation detector technologies expand the limits of detection in advanced electron microscopy.
Who should attend?
- Materials scientists, electron microscopists, chemists, and physicists working on molecular materials, organic semiconductors, catalysis, and nanostructured composites.
- Researchers and facility users exploring advanced 4D-STEM and EELS techniques, or applying cutting-edge detectors to energy and sustainability challenges.
Certificate of attendance
If you attend the live webinar, you will automatically receive a certificate of attendance, including a learning outcomes summary, for continuing education purposes.
If you view the on-demand webinar, you can request a certificate of attendance by emailing editor@selectscience.net.
Speakers
Dr. Sean Collins leads a research group specializing in structural studies of molecular materials with a focus on applications for sustainability. Research in the group spans advanced electron microscopy approaches for understanding the materials microstructure and its connection to functional properties in materials from organic semiconductors to metal–organic frameworks (MOFs) and polymeric supports for single-atom catalysis. Dr. Collins obtained his PhD in 2016 in the Department of Materials Science and Metallurgy at the University of Cambridge. During his PhD, he developed EELS for quantitative, three-dimensional imaging of surface plasmons in metal nanoparticles.
Kumar Vaidikar is a Technical Sales Engineer at Quantum Detectors with expertise in imaging systems and advanced detector technologies. With a background spanning mechanical engineering, simulations, and applications support, he bridges technical innovation with real-world research needs.
Moderator
