Exploding wire preparation of core–shell aluminum–silicon nanoparticles and characterization as energetic material

2021 ◽  
Vol 23 (12) ◽  
Author(s):  
Bing Pan ◽  
Shi Yan ◽  
Qingqing Yuan ◽  
Shuang Li ◽  
Xueyong Guo ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Energetic Material ◽  
Core Shell ◽  
Exploding Wire ◽  
Aluminum Silicon

Solid Bridging during Pattern Collapse (Stiction) Studied on Silicon Nanoparticles

2011 ◽  
Vol 1299 ◽  
Author(s):  
Daniel Peter ◽  
Michael Dalmer ◽  
Andriy Lotnyk ◽  
Lorenz Kienle ◽  
Alfred Lechner ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
High Surface ◽  
Volume Ratio ◽  
Model System ◽  
Core Shell ◽  
Surface Phenomena ◽  
Drying Process ◽  
Sio2 Shell ◽  
Local View ◽  
Shell Particles

ABSTRACTThe high surface to volume ratio of nanoparticles allows a detailed experimental study of the surface phenomena associated with solid bridging. Besides bulk analyses, the local view on the structure and composition via HRTEM is particularly essential. 50 nm core shell particles consisting of a silicon (Si) core and a SiO2 shell were used as model system to understand surface phenomena appearing for Si-based nanostructures. Evaporative drying from de-ionized water shows the most significant bridging effect based on SiO2. There is only a localized deposition of oxides between the particles during the drying process and no overall oxidation. For the deposition material, silicates are the most likely candidates.

Strong 1.54 μm cathodoluminescence from core-shell structures of silicon nanoparticles and erbium

2016 ◽  
Vol 109 (26) ◽  
pp. 261103 ◽  
Author(s):  
Tuan Hoang ◽  
Noha Elhalawany ◽  
Brian Enders ◽  
Ersin Bahceci ◽  
Laila Abuhassan ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Shell Structures ◽  
Core Shell

Design Considerations Influencing Optical Response in Gold Spherical Nanoparticles

2017 ◽  
Vol 46 ◽  
pp. 1-11 ◽  
Author(s):  
Amir Maghoul ◽  
Ali Rostami ◽  
Samiyeh Matloub ◽  
Amin Pourrezaei
Keyword(s):  
Cross Section ◽  
Silicon Nanoparticles ◽  
Optical Response ◽  
Resonant Peak ◽  
Core Shell ◽  
Spherical Nanoparticles ◽  
Shell Nanoparticles ◽  
Extinction Cross Section ◽  
The Core ◽  
Core Shell Nanoparticles

In this article, the relations between extinction cross section and Gold nanoparticle's parameters such as dimensions have been investigated. In this work, the extinction cross section of the core-shell nanoparticles is analyzed by changing the shell material and its thickness. By this, the interesting results such as shifting resonant peak in optical response are obtained. Moreover, a new model of nanostructure is proposed in which the resonant peak of extinction cross section can be controlled by adding silicon nanoparticles and impurity in the shell. This method can be used for tuning of the scattering properties of the core-shell nanoparticle. In the following, we demonstrate that the effective epsilon properties can be used for tuning of the desired optical response in the combinational structure of the spherical nanoparticles. At the end, the effective relative epsilon is also calculated for the selected structures. The operational frequency band is selected from 300 (THz) to 900 (THz).

The shell matters: one step synthesis of core–shell silicon nanoparticles with room temperature ultranarrow emission linewidth

2020 ◽  
Vol 222 ◽  
pp. 135-148 ◽  
Author(s):  
Anna Fucikova ◽  
Ilya Sychugov ◽  
Jan Linnros
Keyword(s):  
Thin Shell ◽  
Silicon Nanocrystals ◽  
Room Temperature ◽  
Silicon Nanoparticles ◽  
Core Shell ◽  
One Step

Here we present a one-step synthesis that provides silicon nanocrystals with a thin shell composed of a ceramic-like carbonyl based compound, embedded in a porous organosilicon film.

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