Variation of growth parameters for density controlled PECVD carbon nanotubes
Carbon Nanotubes (CNTs) has been substantially an interesting topic of research due to its unique properties which is seen as a promising prospect for a variety of applications especially in the area of field emitters. It had been published that this property of CNTs may deteriorate due to the high...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2009
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/15812 |
| _version_ | 1826123532569935872 |
|---|---|
| author | Toh, Han Cheng |
| author2 | Tay Beng Kang |
| author_facet | Tay Beng Kang Toh, Han Cheng |
| author_sort | Toh, Han Cheng |
| collection | NTU |
| description | Carbon Nanotubes (CNTs) has been substantially an interesting topic of research due to its unique properties which is seen as a promising prospect for a variety of applications especially in the area of field emitters. It had been published that this property of CNTs may deteriorate due to the high density of CNTs and hence many methods have been done to reduce the density of CNTs. In this project, the growths of CNTs were done in PECVD system whereby reactive gas such as ammonia and acetylene as carbon feedstock gas was used to supplied into the reactive chamber.Pre-treatment such as annealing and etching was performed on the nickel catalyst film. Variations of these two growth parameters has shown to have direct relation with the density of CNTs. Results of these processes reveals a correlation between annealing and etching conditions with the diameters and densities of these CNTs. Few analysis methods were made on the diameter and density of CNTs for verification of these trends. Raman analysis was also conducted on the samples. |
| first_indexed | 2024-10-01T06:06:12Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/15812 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:06:12Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/158122023-07-07T16:11:02Z Variation of growth parameters for density controlled PECVD carbon nanotubes Toh, Han Cheng Tay Beng Kang School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics Carbon Nanotubes (CNTs) has been substantially an interesting topic of research due to its unique properties which is seen as a promising prospect for a variety of applications especially in the area of field emitters. It had been published that this property of CNTs may deteriorate due to the high density of CNTs and hence many methods have been done to reduce the density of CNTs. In this project, the growths of CNTs were done in PECVD system whereby reactive gas such as ammonia and acetylene as carbon feedstock gas was used to supplied into the reactive chamber.Pre-treatment such as annealing and etching was performed on the nickel catalyst film. Variations of these two growth parameters has shown to have direct relation with the density of CNTs. Results of these processes reveals a correlation between annealing and etching conditions with the diameters and densities of these CNTs. Few analysis methods were made on the diameter and density of CNTs for verification of these trends. Raman analysis was also conducted on the samples. Bachelor of Engineering 2009-05-15T07:31:44Z 2009-05-15T07:31:44Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15812 en Nanyang Technological University 99 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics Toh, Han Cheng Variation of growth parameters for density controlled PECVD carbon nanotubes |
| title | Variation of growth parameters for density controlled PECVD carbon nanotubes |
| title_full | Variation of growth parameters for density controlled PECVD carbon nanotubes |
| title_fullStr | Variation of growth parameters for density controlled PECVD carbon nanotubes |
| title_full_unstemmed | Variation of growth parameters for density controlled PECVD carbon nanotubes |
| title_short | Variation of growth parameters for density controlled PECVD carbon nanotubes |
| title_sort | variation of growth parameters for density controlled pecvd carbon nanotubes |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics |
| url | http://hdl.handle.net/10356/15812 |
| work_keys_str_mv | AT tohhancheng variationofgrowthparametersfordensitycontrolledpecvdcarbonnanotubes |