Results 31 to 40 of about 953,966 (294)

Optical Properties of Monocrystalline Silicon Nanowires

open access: yesФізика і хімія твердого тіла, 2021
The paper presents the results of a study of the optical reflection and transmission spectra of a silicon single crystal p-Si (100) with silicon nanowires grown on both sides and porous silicon p-Si (100) on a single crystal substrate in the spectral ...
P.O. Gentsar   +3 more
doaj   +1 more source

Porosity-dependent fractal nature of the porous silicon surface

open access: yesAIP Advances, 2015
Porous silicon films with porosity ranging from 42% to 77% were fabricated by electrochemical anodization under different current density. We used atomic force microscopy and dynamic scaling theory for deriving the surface roughness profile and ...
N. Rahmani, R. S. Dariani
doaj   +1 more source

A nanostructured porous silicon based drug delivery device

open access: yes, 2009
Targeted and controlled delivery of therapeutic agents on demand is pivotal in realising the efficacy of many pharmaceuticals. The design and fabrication of a novel, electrically-addressable, porous structure-based drug delivery device for the controlled
Chau, Chien Fat
core   +2 more sources

BIOCHIP AND LAB-ON-CHIP FOR GENOMIC AND PROTEOMIC APPLICATIONS [PDF]

open access: yes, 2008
There is no other inorganic material that brings together such much intriguing features like porous silicon (PSi) for people working in the optical sensing field.
Rotiroti, Lucia
core   +1 more source

Surface Area of Porous Silicon [PDF]

open access: yesEngineering and Technology Journal, 2010
The surface area of porous silicon layers produced by different methods hasbeen measured in this work. It is found that the surface area of the porous siliconis optimum when high laser power density is used to etch n –type silicon wafer viathe laser ...
Mayasa AbdulWahid Shanon   +2 more
doaj   +1 more source

One Spot—Two Sensors: Porous Silicon Interferometers in Combination With Gold Nanostructures Showing Localized Surface Plasmon Resonance

open access: yesFrontiers in Chemistry, 2019
Sensors composed of a porous silicon monolayer covered with a film of nanostructured gold layer, which provide two optical signal transduction methods, are fabricated and thoroughly characterized concerning their sensing performance.
Ruth Fabiola Balderas-Valadez   +2 more
doaj   +1 more source

Multicrystalline Silicon Passivation by Hydrogen and Oxygen- Rich Porous Silicon Layer for Photovoltaic Cells Applications [PDF]

open access: yesIranian Journal of Materials Science and Engineering, 2023
In this work, we demonstrate the beneficial effect of introducing a superficial porous silicon layer on the electronic quality of multi-crystalline silicon for photovoltaic cell application. The porous silicon was formed using an acid vapor etching-based
Aqeel Mohammed Hamoudi   +2 more
doaj  

Formation of SiC by Vacuum Carbidization on Porous Silicon

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
Planar-view TEM investigation revealed the formation of cubic silicon carbide layers on porous silicon by vacuum carbidization. The formation of cubic silicon layers in the form of a two-phase system was found.
M. V. Labanok   +4 more
doaj   +1 more source

Photonic Crystal Sensors Based on Porous Silicon

open access: yesSensors, 2013
Porous silicon has been established as an excellent sensing platform for the optical detection of hazardous chemicals and biomolecular interactions such as DNA hybridization, antigen/antibody binding, and enzymatic reactions. Its porous nature provides a
Claudia Pacholski
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

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