Materials modeling improved by giving atoms freedom

Researchers from Lawrence Livermore National Laboratory (LLNL), Calif., created a new model for crystal defects at realistic temperatures. As most materials, especially metals and ceramics, are crystals, their atoms are arranged in three-dimensional lattices that repeat the same exact pattern, over and over again. But there’s a well-known saying in materials science: “Crystals are like people. It is the defects that tend to make them interesting.”

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Analysis of 6,276 connectors for rooftop PV systems

Sandia National Labs researchers have created a new dataset on the rates and types of rooftop photovoltaic connector failures and published the first large-scale investigation of harvested PV connectors, drawing from a dataset of 6276 connectors from residential rooftop solar systems across the United States.

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NIST finds Florida condo collapse started in pool deck

Flaws in the pool deck are thought to be the preliminary cause of the devastating collapse of a condominium in Surfside, Florida, that killed 98. Recent test results by the National Institute of Standards and Technology (NIST), the agency leading the investigation of the 2021 tragedy, reinforces the theory that the failure started in the pool deck area rather than in the tower itself. NIST released new findings this week.

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Reducing TOPCon solar cell degradation via copper plating

Researchers at the University of New South Wales, Australia, have created a protective barrier on the front silver grid of a TOPCon solar cell using a 1 µm copper plating layer, which reduces corrosion susceptibility and significantly lowers contaminant-induced degradation compared to unprotected reference devices.

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