Market Trends, Materials & Manufacturing Processes

EPFL go PV 5. Lamination Process & PV Module Materials Polymeric Backsheet Most PV modules → composite polymer sheet as backsheet. · Multi-stack structure of three layers with an overall thickness of 280-400 μm. T-P-T backsheet Front Glass Encapsulant Stringed cells Encapsulant Backsheet or Rear glass 150 μm 75 μm UV Resistant Layer Air Side 75 μm UV Resistant Layer PVF (polyvinyl-fluoride) - TedlarⓇ → protects the internal circuit (and PET layer) from weathering agents PET (Polyethylene terephthalate) → isolates the module electrically and provides mechanical stability. GoPV Project | SUMMER SCHOOL 30 PV SYSTEMS TECHNOLOGIES AND DESIGN

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