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Continue to ChatInexpensive Solar Cell Coating May Lead To Big Increases In Solar Cell Efficiency, 1 Photon Knocks Loose 2 Electrons https://cleantechnica.com/2013/04/19/inexpensive-solar-cell-coating-may-lead-to-big-increases-in-efficiency-new-technique-allows-one-photon-to-knock-loose-two-electrons/