BIO-MIMETIC NANOSTRUCTURED SURFACES FOR NEAR-ZERO REFLECTION SUNRISE TO SUNSET

ABSTRACT: Nanostructured moth-eye arrays for antireflective surfaces in silicon solar cells are investigated. Following promising simulation results which show that solar cells incorporating antireflective moth-eye arrays could produce up to 12 % more energy than those employing single layer antireflective coatings, a range of moth-eye arrays in silicon have been fabricated. Reflectances of less than 0.5 % were measured over a broad range of visible and near infra-red wavelengths, making these structures excellent candidates for reducing reflection from solar cells