Highly porous Germanium surfaces with uniformly distributed columnar nanovoid structures
are fabricated over a large area (wafer scale) by large fluence Sn+ irradiation through a thin …

In this paper, we demonstrate enhanced light trapping by self-organized nanoripples on the
germanium surface. The enhanced light trapping leading to high absorption of light is …

In the present article we report enhanced light absorption, tunable size-dependent blue shift,
and efficient electron–hole pairs generation in Ge nanoporous films (np-Ge) grown on Si …

Designing materials surfaces for reducing the reflection of light is imperative towards
enhancing the performance of optical and optoelectronic devices. We show that ion …

We report on the formation of high aspect ratio anisotropic nanopatterns on crystalline GaAs
(100) and Si (100) substrates exploiting defocused Ion Beam Sputtering assisted by a …

Nanostructured surfaces are known to provide excellent optical properties for various
photonics devices. Fabrication of such nanoscale structures to germanium (Ge) surfaces by …

Porous materials are essential for a wide range of applications in energy storage, catalysis,
and environmental solutions. Material fabrication methods which can tailor the porous …

We address the fabrication of nano-architectures by impacting thin layers of amorphous Ge
deposited on SiO 2 with a Ga+ ion beam and investigate the structural and optical properties …

Semiconducting nanowires (NWs) are good candidates for new optoelectronic or
photovoltaic devices due to their excellent ability to guide, scatter, or absorb light, from near …

Novel metallic nanopatterns integrated with semiconductor films form optical metamaterials
that can enable enhanced absorption. When employed in photovoltaics, such integrated …