Nanowire-based artificial photoreceptors with multi-hyperuniformity inspired by chicken retina.

Retinal cells of chicken possess a hyperuniform distribution enabling exceptional spatial sampling. Recently, interest has grown in mimicking biological imaging systems for optoelectronics technology. However, since biological retinal cells and current imaging pixels have a significant scale mismatch such as super-micron and sub-micron, the applicability of hyperuniform distribution must be investigated at sub-micron scale, considering wave-optics phenomena.

Near-Ideal Copper Oxide Heterostructure Design for Photoelectrochemical Water Splitting.

In recent years, photoelectrochemical (PEC) hydrogen generation through water splitting has gained significant attention as a carbon-free solar-to-energy conversion strategy. Among various materials, copper oxides, specifically cupric oxide (CuO) and cuprous oxide (CuO), have been extensively investigated for their suitable band positions and prominent performance, particularly in heterostructures. However, previously reported heterostructures, such as CuO layers on CuO, are not ideal configurations in terms of photoelectrical properties.