Laser Welded Edge Seals for Polymer-Free Glass/Glass Modules

Research output: NRELPresentation


This presentation covers fs lasers which enable crack-free and stress-free glass/glass welds. Welds are nearly as strong as the glass (KI, weld ~ KI, glass) and static load test passed, enabling: 1) polymer-free; 2) hermetically sealed; and 3) recyclable modules. Next steps are: 1) follow-on funding; 2) develop feed throughs (metal/glass welds already achieved for other devices); and 3) weld mini modules for further IEC module testing.
Original languageAmerican English
Number of pages22
StatePublished - 2023

Publication series

NamePresented at the 50th IEEE Photovoltaic Specialists Conference, 11-16 June 2023, San Juan, Puerto Rico

NREL Publication Number

  • NREL/PR-5900-85686


  • DuraMAT
  • edge seals
  • glass/glass module
  • laser-welded
  • photovoltaic
  • polymer-free
  • PV
  • recyclable
  • SPARK Project
  • static load


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