Results 31 to 40 of about 171,999 (278)

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

Formation of Porous Silicon through the nanosized Pores of an Anodized Alumina Template [PDF]

open access: yes, 2003
This letter demonstrates the ability to fabricate porous silicon through the nanoscale pores of an anodized alumina template formed on a silicon substrate.
Das, Biswajit, McGinnis, S. P.
core   +2 more sources

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

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  

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

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