Green solvents processability is crucial to the large area fabrication of polymer solar cells. Organic solar cells oscs offer a relevant case in point when considering challenges imposed by green manufacturing oscs usually rely on a blend of electron donating and electron accepting semiconductors with specific energetic optical and transport properties in order to achieve efficient harvesting of sunlight and photocurrent generation. In particular the most recent green solvent processable opvs with high efficiencies in excess of 9 are highlighted.
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