Laser Welded Edge Seals for Glass/Glass Modules

Research output: NRELPoster


Polymers used in module construction are often involved in degradation mechanisms and hamper recycling. This project explores femtosecond (fs) laser welding of glass/glass modules to enable polymer-free modules. We are utilizing the knowledge base of the industrial laser community to apply glass/glass fs laser welding technology to solar modules. Experimentally measured stress intensity factors for glass welds are input into a COMSOL model of a full-size module to test weld failure under static loading. If successful, fs laser welding could enable modules that are polymer-free that will extend module warrantees, allow hermetically sealed glass/glass modules for moisture-sensitive semiconductors, and improve module recyclability.
Original languageAmerican English
StatePublished - 2022

Publication series

NamePresented at the DuraMAT Workshop, 30 August - 1 September 2022, Breckenridge, Colorado

NREL Publication Number

  • NREL/PO-5900-83891


  • COMSOL finite element model
  • DuraMAT
  • glass/glass module
  • laser welded edge seals
  • module recycling
  • reliability
  • weld stress intensity factors


Dive into the research topics of 'Laser Welded Edge Seals for Glass/Glass Modules'. Together they form a unique fingerprint.

Cite this