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Nara Institute of Science and Technology

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The high FFs (~70%) of the all-polymer blend solar cells were achieved because of the longer charge-carrier lifetimes due to the lower bimolecular charge recombination coefficients. The preferred blend morphology for suppressing the bimolecular charge recombination is characterized by a well-ordered local structure due to chain aggregation by both the polymer donor (D) and acceptor (A).

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Hiroaki Benten

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