Energy

China’s CAS Sets World Record 15.45% Efficiency for Kesterite Solar Cell

Scientists at the Chinese Academy of Sciences built a kesterite solar cell that achieved a world record efficiency of 15.45%. The team solved a metal ion migration problem using a new lithium tin sulfide layer that stabilizes the cell and reduces defects. The certified efficiency of 15.04% moves cheaper, abundant-material solar cells closer to commercial reality.

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Idaho and Argonne Labs Build Griffin Software to Test Advanced Nuclear Reactors

Scientists at Idaho National Laboratory and Argonne National Laboratory built Griffin, a software tool that simulates nuclear reactors in a computer. The 2025 R&D 100 Award winning software helps engineers test reactor safety and performance without expensive physical prototypes. It also supports NASA projects for nuclear-powered space exploration.

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US Argonne Lab Develops Microscale Technique for Safer Nuclear Fuel

Argonne National Laboratory researchers have developed a new microscale technique to measure thermal conductivity in nuclear fuel. The suspended bridge method uses tiny samples to accurately track how radiation damage affects heat transfer. This helps predict fuel behavior, improve reactor safety, and support the design of next-generation nuclear systems.

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Wisconsin Governor Visits UW–Madison Nuclear Reactor to Explore Energy Future

Wisconsin Governor Tony Evers toured the University of Wisconsin–Madison nuclear reactor to see fission and fusion research firsthand. The visit followed a state partnership with the university’s nuclear engineering department to study nuclear energy opportunities. UW–Madison has operated its reactor since 1961 and has spun out three fusion companies from campus research.

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