All-Polymer Solar Cells Employing Non-Halogenated Solvent and Additive

摘要:

Herein, we report an all-polymer solar cell with a PCE of over 5% fabricated with non-halogenated solvent. Our method of polymer side-chain engineering using polystyrene enhanced the solubility of polymers in toluene. The phase separation size of the polymer-polymer blend was controlled by tuning the additive concentration. Three different additives were employed and studied. To the best of our knowledge, this is the highest performing all-polymer solar cell fabricated with both non halogenated solvent and non-halogenated additive, which highlights its potential toward environmentally friendly manufacturing of all polymer organic solar cells.

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