Nanocrystalline Rutile Electron Extraction Layer Enables Low-Temperature Solution Processed Perovskite Photovoltaics with 13.7% Efficiency

Nano Letters

DOI: 10.1021/nl500399m

Aswani Yella, Leo-Philipp Heiniger, Peng Gao, Mohammad Khaja Nazeeruddin and Michael Grätzel

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