Results 31 to 40 of about 10,737 (241)

Metal-Assisted Etching of p-Type Silicon Using Patterned Platinum and Silver Films in Single Layers and Bimetal Double Layers

Electrochemistry
Metal-assisted etching (metal-assisted chemical etching) is a promising wet process for silicon (Si) microfabrication. The etching behavior depends on the catalyst metal, but detailed differences are not fully understood.
Ayumu MATSUMOTO, Takuma NAKAYAMA, Shinji YAE   +2 more
doaj   +1 more source

Fabrication and Characterization of Inverted Silicon Pyramidal Arrays with Randomly Distributed Nanoholes

Micromachines, 2021
We report the fabrication, electromagnetic simulation and measurement of inverted silicon pyramidal arrays with randomly distributed nanoholes that act as an anti-reflectivity coating.
Yue Zhao, Kaiping Zhang, Hailiang Li, Changqing Xie   +3 more
doaj   +1 more source

Inverse metal-assisted chemical etching of germanium with gold and hydrogen peroxide

Nanotechnology, 2022
Abstract Metal-assisted chemical etching (MACE) is a flexible technique for texturing the surface of semiconductors. In this work, we study the spatial variation of the etch profile, the effect of angular orientation relative to the crystallographic planes, and the effect of doping type. We employ gold in direct contact with germanium as
D Lidsky, J M Cain, T Hutchins-Delgado, T M Lu   +3 more
openaire   +2 more sources

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

The effect of clustering of Si nanowires produced by the metal-assisted chemical etching method on their anti-reflecting properties

Фізика і хімія твердого тіла
Silicon nanowires are valuable for their compatibility with silicon technology and unique properties. Using metal-assisted chemical etching, we produced silicon nanowires and studied the effects of clustering, roughness, and length on wetting ...
I.I. Skrypnyk, S.I. Nichkalo, N.O. Shtangret   +2 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Textured stainless steel foil as efficient rear reflector for flexible black silicon

Results in Physics, 2021
This paper reports textured SS foil as an efficient rear reflector for flexible b-Si. Wafer thinning by concentrated potassium hydroxide (KOH) solution followed by metal-assisted chemical etching (MACE) are used to fabricate the flexible b-Si with 67 μm ...
Halo Dalshad Omar, Auwal Abdulkadir, Md. Roslan Hashim, Mohd Zamir Pakhuruddin   +3 more
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source