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https://www.mpg.de/12009261/photovoltaic-ions-conductivity?c=2249 Photoeffect increases ion conductivity in photovoltaic materials | Max-Planck-Gesellschaft A photoeffect increases the ion conductivity in a perovskite used for solar cells, as a team headed by J. Maier from the Max Planck Institute for Solid State... photovoltaic materialsmax planckincreasesionconductivity