Nature Communications (Sep 2022)
High performance polymerized small molecule acceptor by synergistic optimization on π-bridge linker and side chain
Abstract
The modification of small molecule acceptor building block and π−bridge linker is effective to improve photovoltaic performance. Here, the authors replace linear with branched alkyl chains and introduce difluorene-substituted linker to realise all-polymer solar cells with efficiency of 17.24%.