標題: | Bias effect on the growth of carbon nanotips using microwave plasma chemical vapor deposition |
作者: | Tsai, CL Chen, CF Wu, LK 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 22-七月-2002 |
摘要: | Carbon nanotips with a high-aspect ratio were directly grown on Pt films. Carbon nanotips grew up to 5.4 mum length and 64 nm diameter under a -120 V bias. Compared to the hollow structure of carbon nanotubes, transmission electron microscopy images indicate its solid body, which is made of graphite. Carbon nanotips possess good field emission characteristics, that is, a turn-on field of 1.5 V/mum and 761 muA/cm(2) under 2.2 V/mum. The Pt films provide a good conduction path for electron transport from the cathode to the emission site and do not act as catalysts. (C) 2002 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.1494839 http://hdl.handle.net/11536/28658 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.1494839 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 81 |
Issue: | 4 |
起始頁: | 721 |
結束頁: | 723 |
顯示於類別: | 期刊論文 |