Possibilities of Monte Carlo simulation for examination of nanowhisker growth

2010 ◽  
Vol 82 (11) ◽  
pp. 2017-2025 ◽  
Author(s):  
Alla G. Nastovjak ◽  
Igor G. Neizvestny ◽  
Nataliya L. Shwartz

The kinetic Monte Carlo (MC) model of nanowhisker (NW) growth is suggested. Two variants of growth are possible in the model—molecular beam epitaxy (MBE) and chemical vapor deposition (CVD). The effect of deposition conditions and growth regimes on the whisker morphology was examined within the framework of the vapor–liquid–solid (VLS) mechanism. A range of model growth conditions corresponding to NW and nanotube formation was determined. The suggested MC model was used for analyses of the morphology of the catalyst–whisker interface and for examination of Si–Ge whisker growth.

2020 ◽  
Vol 32 (15) ◽  
pp. 155401 ◽  
Author(s):  
Shuai Chen ◽  
Junfeng Gao ◽  
Bharathi M Srinivasan ◽  
Gang Zhang ◽  
Viacheslav Sorkin ◽  
...  

2019 ◽  
Vol 35 (10) ◽  
pp. 1119-1127 ◽  
Author(s):  
Shuai CHEN ◽  
◽  
Junfeng GAO ◽  
Bharathi M. SRINIVASAN ◽  
Yong-Wei ZHANG

2021 ◽  
Vol 9 ◽  
Author(s):  
Nikolaos Cheimarios ◽  
Deifilia To ◽  
George Kokkoris ◽  
George Memos ◽  
Andreas G. Boudouvis

Monte Carlo (MC) and kinetic Monte Carlo (kMC) models are widely used for studying the physicochemical surface phenomena encountered in most deposition processes. This spans from physical and chemical vapor deposition to atomic layer and electrochemical deposition. MC and kMC, in comparison to popular molecular methods, such as Molecular Mechanics/Dynamics, have the ability to address much larger time and spatial scales. They also offer a far more detailed approach of the surface processes than continuum-type models, such as the reaction-diffusion models. This work presents a review of the modern applications of MC/kMC models employed in deposition processes.


2009 ◽  
Vol 156-158 ◽  
pp. 235-240 ◽  
Author(s):  
A.G. Nastovjak ◽  
I.G. Neizvestny ◽  
Nataly Shwartz

The process of nanowhisker formation on the substrates activated by catalyst drops was investigated by Monte Carlo simulation. Influence of deposition conditions on whisker morphology was considered. Straight whiskers with uniform diameter could be grown using catalyst possessing large contact angle with whisker material. It was demonstrated that variation of growth conditions in such physicochemical system may result in nanotube formation. Atomic mechanism of hollow whisker formation was suggested. The range of model growth conditions for nanowhisker and nanotube formation were identified.


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