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markjohn

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31/01/18

07:52

Post #: 30681901
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Originally posted by markjohn ↑

http://www.investorideas.com/news/2018/renewable-energy/01302NREL.asp

"During testing, we intentionally stress the cells somewhat harder than real-world applications in an effort to speed up the aging," said Joseph Luther, who along with Joseph Berry directed the work titled "Tailored Interfaces of Unencapsulated Perovskite Solar Cells for >1000 Hours of Operational Stability." "A solar cell in the field only operates when the sun is out, typically. In this case, even after 1,000 straight hours of testing the cell was able to generate power the whole time."

While more testing is needed to prove the cells could survive for 20 years, or more, in the field (the typical lifetime of solar panels) this study represents an important benchmark for determining that perovskite solar cells are more stable than previously thought.

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NREL's unencapsulated solar cell—a cell used for testing that doesn't have a protective barrier like glass between the cell's conductive parts and the elements—held onto 94 percent of its starting efficiency after 1,000 hours of conti

GSL Price at posting: 18.0¢ Sentiment: Buy Disclosure: Held
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