Adding Amorphous Content to Highly Crystalline Polymer Nanowire Solar Cells Increases Performance.

Yan, Han; Song, Yin; McKeown, George R; Scholes, Gregory D; Seferos, Dwight S · Adv Mater · 2015

basic_science · Level V

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Abstract

Polymer solar cells are fabricated with systematic variation of the phase purity. Photovoltaic tests demonstrate that devices with ca. 10% of mixed phases outperform pure-phase devices. Photophysical studies reveal the effects of mixed phase on charge generation and recombination. These results show a promising strategy for the optimization of organic electronic materials.