Pseudo-particle continuum modelling of nanowire growth in aerotaxy
(2020) European Aerosol Conference 2020- Abstract
- Aerotaxy growth of GaAs nanowires has shown to be capable of making GaAs wires, GaAsxP1-xwires (Metaferia, 2016) and even pn-junctions with phovovoltaic properties. With a goal of better understanding the aerotaxy process, we have developed a model for nanowire growth in Aerotaxy, based on a surface diffusion model for substrate-based growth. Our model considers the growth conditions, varying in time and space, as the seed particles and growing nanowires pass through the reactor. The growth is modeled as a chemical reaction, where gases but also particles are described as chemical species. By interpreting the continuous Au and GaAs species as wires with a length corresponding to the amount of material at that point, the particulate nature... (More)
- Aerotaxy growth of GaAs nanowires has shown to be capable of making GaAs wires, GaAsxP1-xwires (Metaferia, 2016) and even pn-junctions with phovovoltaic properties. With a goal of better understanding the aerotaxy process, we have developed a model for nanowire growth in Aerotaxy, based on a surface diffusion model for substrate-based growth. Our model considers the growth conditions, varying in time and space, as the seed particles and growing nanowires pass through the reactor. The growth is modeled as a chemical reaction, where gases but also particles are described as chemical species. By interpreting the continuous Au and GaAs species as wires with a length corresponding to the amount of material at that point, the particulate nature can be taken into account, without the arduous task of explicit particle modeling. Pseudo-particle modelling can potentially be used as a more general strategy for gas phase particle growth. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5a09b1ec-ee2c-455c-926b-3f71bcf7f743
- author
- Deppert, Knut LU ; Magnusson, Martin H. LU ; Sivakumar, Sudhakar LU ; Samuelson, Lars LU and Johansson, Jonas LU
- organization
- publishing date
- 2020-08-31
- type
- Contribution to conference
- publication status
- published
- subject
- conference name
- European Aerosol Conference 2020
- conference location
- Aachen, Germany
- conference dates
- 2020-08-31 - 2020-09-04
- language
- English
- LU publication?
- yes
- id
- 5a09b1ec-ee2c-455c-926b-3f71bcf7f743
- date added to LUP
- 2020-11-30 09:56:53
- date last changed
- 2022-04-05 14:58:21
@misc{5a09b1ec-ee2c-455c-926b-3f71bcf7f743, abstract = {{Aerotaxy growth of GaAs nanowires has shown to be capable of making GaAs wires, GaAsxP1-xwires (Metaferia, 2016) and even pn-junctions with phovovoltaic properties. With a goal of better understanding the aerotaxy process, we have developed a model for nanowire growth in Aerotaxy, based on a surface diffusion model for substrate-based growth. Our model considers the growth conditions, varying in time and space, as the seed particles and growing nanowires pass through the reactor. The growth is modeled as a chemical reaction, where gases but also particles are described as chemical species. By interpreting the continuous Au and GaAs species as wires with a length corresponding to the amount of material at that point, the particulate nature can be taken into account, without the arduous task of explicit particle modeling. Pseudo-particle modelling can potentially be used as a more general strategy for gas phase particle growth.}}, author = {{Deppert, Knut and Magnusson, Martin H. and Sivakumar, Sudhakar and Samuelson, Lars and Johansson, Jonas}}, language = {{eng}}, month = {{08}}, title = {{Pseudo-particle continuum modelling of nanowire growth in aerotaxy}}, year = {{2020}}, }