China’s Solar Dominance Faces New Rival: An Ultrathin Film
Updated Jan. 11, 2024 1:00 am ET
TOKYO—China’s near-monopoly on the solar-energy market has prompted the U.S. and allies to step up the search for workarounds. Engineers believe they have found one in a type of solar cell that looks and feels like camera film.
Japan is pushing the technology with subsidies and other support, a sign of how renewable energy, alongside other high-tech fields such as semiconductors, has become a geopolitical football.
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