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  "path": "/news/2026-03-perovskite-solar-cells-efficiency-lifespan.html",
  "publishedAt": "2026-03-27T10:00:01.000Z",
  "site": "https://techxplore.com",
  "tags": [
    "Engineering"
  ],
  "textContent": "A KAIST research team has solved the \"solar cell dilemma,\" in which increasing efficiency shortens lifespan, while extending lifespan lowers efficiency. The team developed a technology to precisely control the internal structure of a surface passivation layer in perovskite solar cells, successfully achieving both high efficiency exceeding 25% and long-term stability at the same time. The study is published in the journal Joule.",
  "title": "Perovskite solar cells achieve over 25% efficiency and long lifespan simultaneously"
}