Single-junction polymer solar cells exceeding 10% power conversion efficiency.

Chen, Jing-De; Cui, Chaohua; Li, Yan-Qing; Zhou, Lei; Ou, Qing-Dong; Li, Chi; Li, Yongfang; Tang, Jian-Xin · Adv Mater · 2015

basic_science · Level V

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Abstract

A single-junction polymer solar cell with an efficiency of 10.1% is demonstrated by using deterministic aperiodic nanostructures for broadband light harvesting with optimum charge extraction. The performance enhancement is ascribed to the self-enhanced absorption due to collective effects, including pattern-induced anti-reflection and light scattering, as well as surface plasmonic resonance, together with a minimized recombination probability.