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In page Perovskite solar cell:

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Continuing the trend, a new record of efficiency for a single-junction perovskite solar cell efficiency was set each year since 2015, with the most frequent record-breakers coming from KRICT and UNIST.[17] The latest record-holders are researchers from UNIST who achieved 25.7% efficiency.[18] There are also efforts focused on reducing energy cost, including the Apolo project consortium at CEA laboratories which aims to bring the module cost below €0.40/Wp (Watt peak).[citation needed]