Intraday Outdoor Efficiency Changes in Metal-Halide Perovskite Photovoltaic Modules

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Abstract
We present outdoor observations of metal-halide perovskite modules deployed in the Photovoltaic Accelerator for Commercializing Technologies center, which houses one of the world's broadest efforts to test metal-halide perovskite photovoltaic modules outdoors. As of January 2025, outdoor testing has encompassed over 150 modules from 14 different partners. Our findings illustrate how daily changes in efficiency, driven by exposure to light, affect field performance in real-world conditions. These effects cannot be explained by existing outdoor performance models and frustrate the notion of a traditional temperature coefficient.
Funding Information
  • National Renewable Energy Laboratory for the U.S. Department of Energy
  • Sandia National Laboratories
  • National Technology & Engineering Solutions of Sandia
  • subsidiary of Honeywell International Inc
  • U.S. Department of Energy's National Nuclear Security Administration (DE-NA0003525)
  • Office of Energy Efficiency and Renewable Energy
  • Solar Energy Technologies Office Award Numbers

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