Light-harvesting micro-/nanohierarchical structures replicated from plants' epidermal cells are exploited for photovoltaic applications. Their broadband and omnidirectional antireflection properties, together with their light-trapping capability, are analyzed experimentally. Power conversion efficiency gains are reported after integrating those replicas onto optimized state-of-the-art organic solar cells. The proposed approach can be applied to different plant species and photovoltaic technologies.
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Hünig et al. (2016) studied this question.
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