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Low-cost imaging of defects in solar cells and solar panels

Electroluminescence imaging of cell/panel defects

  • Cracks in silicon solar cells
  • Cell processing defects (e.g. broken fingers)
  • Silicon quality (lifetime) variations
  • Wire soldering problems
  • Potential Induced Degradation
  • Thin-Film Shunting
  • Upgrade to PL mode without contacting
Electroluminescence Testing

Got Pixels?

24-Megapixel modified camera:
Better images than a scientific camera at a fraction of the cost

Customers include

  • Panel R&D and QC Groups
  • Cell R&D Groups (Si & thin film)
  • Panel Performance Testing Labs
  • Panel Buyers/Integrators (QC)


  • Camera, Lens, and Filters
  • Focusing aids
  • Power supply
  • Power cables to Panels
  • Computer with data acquisition & post processing software
  • Stand or tripod
  • Detailed operations guide
Silicon Mono badly damaged panel imaging
Lab EL system

BrightSpot EL/PL software