Results 41 to 50 of about 1,579,291 (325)

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

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

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  

Advances in Porous Silicon–Based Nanomaterials for Diagnostic and Therapeutic Applications

open access: yesAdvances in Therapy, 2018
This review provides a perspective on porous silicon (pSi)–based nanomaterials including nanoparticles, nanowires, and thin films, that are currently being used in advanced therapy, imaging, and sensing, with a focus on their effective use in future ...
Terence Tieu   +4 more
semanticscholar   +1 more source

Porous silicon nanowire arrays fabrication through one-step metal-assisted chemical etching

open access: yes工程科学学报, 2019
One-step metal-assisted chemical etching (MACE) was used to fabricate porous silicon nanowire arrays. Also, the effects of doping level, AgNO3 concentration, and HF concentration on the morphology and structure of porous silicon nanowire were ...
HE Zu-dong   +6 more
doaj   +1 more source

Сurrent-voltage characteristics and photoelectric properties of por-Si/Si-p/Si-n diodes with different porous layer thickness

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
In this work, the current-voltage and photoelectric spectral characteristics of double heterodiodes por-Si/Si-p/Si-n and a reference diode with a p–n junction at room temperature are analyzed and compared with data on the thickness of porous silicon ...
Yan Dmitriy   +3 more
doaj   +1 more source

Role of microstructure in porous silicon gas sensors for NO$_2$

open access: yes, 2003
Electrical conductivity of porous silicon fabricated form heavily doped p-type silicon is very sensitive to NO$_2$, even at concentrations below 100 ppb. However, sensitivity strongly depends on the porous microstructure.
Bettotti, Paolo   +6 more
core   +1 more source

A review of magnesiothermic reduction of silica to porous silicon for lithium-ion battery applications and beyond

open access: yes, 2018
Increasing demands for portable power applications are pushing conventional battery chemistries to their theoretical limits. Silicon has potential as an anode material to increase lithium-ion cell capacity.
Jake E. Entwistle   +2 more
semanticscholar   +1 more source

A novel approach to synthesize micrometer-sized porous silicon as a high performance anode for lithium-ion batteries

open access: yesNano Energy, 2018
Porous structured silicon (p-Si) has been recognized as one of the most promising anodes for Li-ion batteries. However, many available methods to synthesize p-Si are difficult to scale up due to their high production cost.
Haiping Jia   +9 more
semanticscholar   +1 more source

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