Side chains and fluorine substituents on conjugated polymers have shown significant impacts on the photovoltaic properties of polymer-based bulk heterojunction (BHJ) solar cells. We comprehensively investigate a series of conjugated polymers with an identical backbone but different combinations of side chains and F substituents. Devices based on the polymer with long bulky side chain and F substituent simultaneously exhibit large open circuit voltage, high short circuit current and good fill factor, leading to the highest efficiency up to 5.6%.

Disentangling the impact of side chains and fluorine substituents of conjugated donor polymers on the performance of bulk heterojunction solar cells

245th National Meeting (2013)

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