Comparison of Accelerated Testing with Modeling to Predict Lifetime of CPV Solder Layers (Presentation): NREL (National Renewable Energy Laboratory)

Research output: NRELPresentation

Abstract

Concentrating photovoltaic (CPV) cell assemblies can fail due to thermomechanical fatigue in the die-attach layer. In this presentation, we show the latest results from our computational model of thermomechanical fatigue. The model is used to estimate the relative lifetime of cell assemblies exposed to various temperature histories consistent with service and with accelerated testing. We alsopresent early results from thermal cycling experiments designed to help validate the computational model.
Original languageAmerican English
Number of pages40
StatePublished - 2012

Publication series

NamePresented at the PV Module Reliability Workshop, 28 February - 2 March 2012, Golden, Colorado

NREL Publication Number

  • NREL/PR-5200-54677

Keywords

  • accelerated testing
  • CPV
  • fatigue
  • lifetime prediction
  • modeling

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