Results 41 to 50 of about 375,113 (275)

Wafer-level integration of self-aligned high aspect ratio silicon 3D structures using the MACE method with Au, Pd, Pt, Cu, and Ir

open access: yesBeilstein Journal of Nanotechnology, 2020
The wafer-level integration of high aspect ratio silicon nanostructures is an essential part of the fabrication of nanodevices. Metal-assisted chemical etching (MACE) is a promising low-cost and high-volume technique for the generation of vertically ...
Mathias Franz   +4 more
doaj   +1 more source

A Cryogenic Silicon Interferometer for Gravitational-wave Detection [PDF]

open access: yes, 2020
The detection of gravitational waves from compact binary mergers by LIGO has opened the era of gravitational wave astronomy, revealing a previously hidden side of the cosmos.
Adhikari, R. X.   +114 more
core   +2 more sources

Wideband ‘black silicon’ for mid-infrared applications [PDF]

open access: yesJournal of Optics, 2017
In this paper, we investigate the absorption of mid-infrared light by low resistivity silicon textured via deep reactive ion etching. An analytical description of the wave propagation in black silicon texture is presented, showing agreement with the experiment and the computational analysis.
Gorgulu K.   +3 more
openaire   +4 more sources

An Opto-Electro-Thermal Model for Black-Silicon Assisted Photovoltaic Cells in Thermophotovoltaic Applications

open access: yesPhotonics, 2023
Black silicon (b-Si)-assisted photovoltaic cells have textured b-Si surfaces, which have excellent light-trapping properties. There has been a limited amount of work performed on the theoretical modelling of b-Si photovoltaic cells, and hence, in this ...
Jasman Y.-H. Chai   +2 more
doaj   +1 more source

Power limits and a figure of merit for stimulated Brillouin scattering in the presence of third and fifth order loss [PDF]

open access: yes, 2015
We derive a set of design guidelines and a figure of merit to aid the engineering process of on-chip waveguides for strong Stimulated Brillouin Scattering (SBS).
Eggleton, Benjamin J.   +4 more
core   +1 more source

Black Silicon with high density and high aspect ratio nanowhiskers

open access: yes, 2011
Physical properties of black Silicon (b-Si) formed on Si wafers by reactive ion etching in chlorine plasma are reported in an attempt to clarify the formation mechanism and the origin of the observed optical and electrical phenomena which are promising ...
Anguita J V   +17 more
core   +1 more source

An Investigation on a Crystalline-Silicon Solar Cell with Black Silicon Layer at the Rear. [PDF]

open access: yesNanoscale Res Lett, 2017
Crystalline-Si (c-Si) solar cell with black Si (b-Si) layer at the rear was studied in order to develop c-Si solar cell with sub-band gap photovoltaic response. The b-Si was made by chemical etching. The c-Si solar cell with b-Si at the rear was found to perform far better than that of similar structure but with no b-Si at the rear, with the efficiency
Zhou ZQ   +6 more
europepmc   +5 more sources

Irrigation and phytolith formation:an experimental study [PDF]

open access: yes, 2011
It has been proposed that phytoliths from archaeological sites can be indicators of water availability and hence inform about past agricultural practices (Rosen and Weiner, 1994; Madella et al., 2009). Rosen and Weiner (1994) found that the number of
Jamjoum, Khalil   +2 more
core   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer   +3 more
wiley   +1 more source

Fabrication of Micro- and Nanopillars from Pyrolytic Carbon and Tetrahedral Amorphous Carbon

open access: yesMicromachines, 2019
Pattern formation of pyrolyzed carbon (PyC) and tetrahedral amorphous carbon (ta-C) thin films were investigated at micro- and nanoscale. Micro- and nanopillars were fabricated from both materials, and their biocompatibility was studied with cell ...
Joonas J. Heikkinen   +6 more
doaj   +1 more source

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