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  "path": "/news2/green/newsid=68994.php",
  "publishedAt": "2026-03-25T21:08:38.000Z",
  "site": "https://www.nanowerk.com",
  "textContent": "A molybdenum-based spin-flip emitter harvested singlet fission excitons at 130% quantum yield, demonstrating a new path beyond the Shockley-Queisser solar cell efficiency limit.",
  "title": "Spin-flip emitter harvests doubled excitons for higher solar cell efficiency"
}