Attolight Webinar Announcement – May 7th, 5:00 PM CET

Attolight is pleased to announce an upcoming webinar taking place on May 7th at 5:00 PM CEST, featuring Dr. Zhaoxia Zhou, Senior Research Fellow at the Loughborough Materials Characterisation Centre, Department of Materials.

This session will explore how cathodoluminescence (CL) spectroscopy performed in a scanning transmission electron microscope (STEM) enables direct nanoscale mapping of band gaps and defect-induced sub-band-gap states. Such capabilities provide valuable insights into the optoelectronic behaviour of materials used in LEDs, photovoltaics, and emerging quantum technologies.

The webinar will focus on the application of STEM/CL to investigate Se-alloyed CdTe thin-film solar cells—one of the leading commercial photovoltaic technologies. By integrating CL with established STEM techniques, including high-angle annular dark-field (HAADF) imaging and energy-dispersive X-ray spectroscopy (EDS), Dr. Zhou will demonstrate how correlative, multimodal analysis supports a deeper understanding of CdTe-based devices and contributes to improved process optimisation.

Participants will also gain an overview of the STEM/CL instrumentation setup at Loughborough University, along with a practical workflow covering sample preparation through to high-throughput analysis. The session will highlight key optimisation strategies, including comparisons between Ga and Xe FIB-prepared specimens, as well as the influence of specimen thickness and cryogenic temperatures on CL signal quality.

This webinar is designed for researchers and engineers working in photovoltaics and advanced materials who are interested in leveraging nanoscale optical characterisation to enhance device performance.

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When: 7 May 2026 at 17:00 CEST (Central European Time) | 11:00 EDT (US East Coast) | 08:00 PDT (US West Coast).

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‍Register here:
https://events.teams.microsoft.com/event/33312ff5-90fd-4f7c-8e16-a3c7688440e7@d6a73a8f-58b8-4bb6-9972-637887334d72