Controlled Growth of Carbon Nanotubes and its Field Emission Properties
| Autor: | Yang Shi-E, LU Zhan-Ling, Ma Bing-Xian, Yao Ning, Fan Zhi-Qin, Zhang Bing-lin |
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| Rok vydání: | 2003 |
| Předmět: |
Materials science
General Physics and Astronomy Nanotechnology Carbon nanotube Chemical vapor deposition Substrate (electronics) Ion source law.invention Optical properties of carbon nanotubes Condensed Matter::Materials Science Field electron emission symbols.namesake Chemical engineering law symbols Raman spectroscopy Current density |
| Zdroj: | Chinese Physics Letters. 20:1991-1993 |
| ISSN: | 1741-3540 0256-307X |
| DOI: | 10.1088/0256-307x/20/11/025 |
| Popis: | Uniform films of aligned carbon nanotubes were grown on a patterned Ni coated ceramic substrate by microwave plasma chemical vapour deposition (MWPCVD). A laser writing technique was used to make some patterns on the substrate. The controlled selective growth of nanotubes on the patterned substrate can be obtained directly during the reaction process in the MWPCVD chamber. The Raman spectrum shows a good graphitization of the carbon nanotubes. In the field emission test, turn-on field of 1 V/μm and emission current density of 5 mA/cm2 at 3.3 V/μm were achieved. |
| Databáze: | OpenAIRE |
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