Nanostructures can significantly affect light absorption due to their size and shape. For instance, changing the size of nanoparticles can shift the absorption spectrum, allowing for tuning of the material's optical properties. This is particularly useful in applications like photovoltaics, where maximizing light absorption is crucial for efficiency. Nanostructures can also create antireflective coatings by reducing the reflection of light, thereby improving the absorption efficiency of solar cells.
