Precision Electroluminesence and Photoluminesence Tools
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SunFlex Solar is developing a new architecture for solar cell interconnections, and BrightSpot's EL/PL system has been central to our R&D efforts. The automated image processing, recipe creation, focus assists and live-view features make this tool extremely efficient for batch processing and trustworthy for process monitoring over time.
Kate Fisher
Co-Founder SunFlex Solar
BrightSpot offers a wide range of systems with Electroluminescence (EL) and/or Photoluminescence (PL) capabilities with applications spanning the complete PV value chain from R&D to product development to manufacturing to field testing.
Reveal hidden defects such as cell cracks, cold solder/weld joints, high contact resistance, shunts, and poor bulk/surface passivation. These tools are optimized for different stages of PV inspection, from cells to panels, and from lab to launchpad.
The CellSpot system enables imaging of defects and non-uniformities in solar cells and minimodules without room light artifacts. Non-contact PL imaging can even be applied to partially processed cells, while comparing EL to PL images allows the user to differentiate between series-resistance and bulk/surface quality effects.
PanEL-Spot enables EL Imaging on a range of PV samples, from individual solar cells to full-size commercial panels, and everything in between. See why your cells and panels exhibit low efficiency, including defects such as cell cracks, wire soldering problems, and thin-film shunting.
TravEL-Spot gives you the ability to take EL imaging to the field, in a convenient and portable travel case. See why your panels are exhibiting an energy shortfall, including defects such as cell cracks, wire soldering problems, potential-induced degradation (PID), and thin-film shunting.
PLus-Spot enables non-contact PL imaging of partially or fully processed solar panels of any technology – Silicon, Perovskites, CdTe, CIGS, III-V multifunctions. Integrate within your production line or swiftly prescreen purchased panels prior to integration within satellites, BIPV, or VIPV.
Uses safe green or red LED light source and a high resolution PL camera within a lightproof enclosure, to obtain contactless images of partially and fully processed cells and minimodules;
Non-contact PL imaging can even be applied to partially processed cells, while comparing EL to PL images allows the user to differentiate between series-resistance and bulk/surface quality effects.
EL can reveal a wide range of defects.
All our cameras are also capable of capturing high-resolution video. Make convincing electroluminescence movies to aid product development and to market the superiority of your company’s products vs the competition.
Control
IMPEL is the unified control platform for BrightSpot imaging systems, enabling seamless coordination of camera, light sources, and power supply. From a single interface, users can adjust exposure settings, trigger PL or EL sequences, and automate capture workflows across multiple system components.
Enhancement
Built-in image processing tools help users sharpen contrast, highlight defects, and visualize subtle variations in cell or panel performance. With support for custom filters and multispectral imaging, IMPEL ensures every captured frame delivers actionable insights, whether in R&D or field diagnostics.
Report
IMPEL simplifies documentation by generating detailed reports with embedded images, metadata, and measurement context. Export results for internal QA, client acceptance, or long-term traceability – standardized and ready to share.
Here you’ll find white papers, case studies, and expert commentary designed to provide practical takeaways for professionals and decision-makers
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