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

Adv Mater. 2015 Feb;27(6):1035-41. doi: 10.1002/adma.201404535. Epub 2014 Nov 18.

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.

Keywords: deterministic aperiodic nanostructures; light scattering; light trapping; polymer solar cell; surface plasmonic resonance.