Polymer Acceptor Based on Double B←N Bridged Bipyridine (BNBP) Unit for High‐Efficiency All‐Polymer Solar Cells

A novel polymer acceptor based on the double B←N bridged bipyridine building block is reported. All-polymer solar cells based on the new polymer acceptor show a power conversion efficiency of as high as 6.26% at a photon energy loss of only 0.51 eV.

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