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Photara develops materials that reduce silver use in solar cells.
Founded in 2022 by Brian Hardin and Max L'Etoile, Photara is based in the US and develops copper- and aluminum-based alternatives to silver for solar cells. In August 2025, it raised USD 8 million in seed funding co-led by Voyager Ventures and Kibo Invest, with participation from Ahren Innovation Capital, WovenEarth Ventures, Pace Ventures Enigma, Prelude Ventures, Breakthrough Energy Ventures and Baruch Future Ventures. The funding will support product development and commercialization.
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