Block copolymer as a nanostructuring agent for high-efficiency and annealing-free bulk heterojunction organic solar cells.

Renaud, Cédric; Mougnier, Sébastien-Jun; Pavlopoulou, Eleni; Brochon, Cyril; Fleury, Guillaume; Deribew, Dargie; Portale, Giuseppe; Cloutet, Eric et al. · Adv Mater · 2012

basic_science · Level V

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Abstract

The addition of a block copolymer to the polymer/fullerene blend is a novel approach to the fabrication of organic solar cells. The block copolymer (P3HT-b-P4VP) is used as nanostructuring agent in the active layer. A significant enhancement of the cell efficiency is observed, in correlation with morphology control, both before (as-cast) and after the annealing process.

Medical subject headings