Although the field of two-dimensional (2D) materials has democratized science by making high-quality samples accessible cheaply, due to atomically thin nature these systems, an integration with nanostructures is almost always required obtain a significant optical response. Traditionally, are fabricated via electron beam lithography or focused ion milling, which expensive, and large-area fabrica...

Hydrogenated amorphous Si (a-Si:H) is an important solar cell material. Here we demonstrate the fabrication of a-Si:H nanowires (NWs) and nanocones (NCs), using an easily scalable and IC-compatible process. We also investigate the optical properties of these nanostructures. These a-Si:H nanostructures display greatly enhanced absorption over a large range of wavelengths and angles of incidence,...