Abstract:

The biological members using nanometer-scale architectures proved to be an ideal ultra-black structure. In order to improve the performance of light harvesting for carbon materials, a vacuum sintering process was used  to fabricate the antireflection nano structures from certain butterfly compound eyes on technologically important carbon materials. By this effective bioinspired templating technique, a new nano lattice structure ultra-black material was obtained with  better antireflection properties than  ordinary ones. The replicas well retained the original microstructure and geometric features, which significantly improved the ultra-black level in the near ultraviolet and visible light range, due to the enhancement  of photon collection efficiency. The ultra-black properties of the nano structure carbon materials were tested, which showed an obviously enhanced light harvesting capability.

Key words: ultra-black material, nano lattice structure, anti-reflection property