All-polymer bulk heterojuction solar cells with 4.8% efficiency achieved by solution processing from a co-solvent.

Earmme, Taeshik; Hwang, Ye-Jin; Subramaniyan, Selvam; Jenekhe, Samson A · Adv Mater · 2014

basic_science · Level V

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Abstract

All-polymer solar cells with 4.8% power conversion efficiency are achieved via solution processing from a co-solvent. The observed short-circuit current density of 10.5 mA cm(-2) and external quantum efficiency of 61.3% are also the best reported in all-polymer solar cells so far. The results demonstrate that processing the active layer from a co-solvent is an important strategy in achieving highly efficient all-polymer solar cells.