標題: | Field emission improvement through structure of intermixture of long and short carbon nanotubes |
作者: | Juan, Chuan-Ping Lin, Kao-Chao Lai, Rui-Ling Chang, Kuo-Jui Cheng, Huang-Chung 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | carbon nanotubes;density control;turn-on field |
公開日期: | 1-二月-2007 |
摘要: | A novel density control With a Structure of an intermixture of long and short carbon nanotubes (CNTs) is first obtained by precisely controlling pretreatment time and hydrogen content. This unique Structure of CNTs is probably due to the uniform distribution of large and small iron nanoparticles under optimum Pretreatment condition. Scanning electron microscopy is performed to confirm the morphology of catalytic nanoparticles after pretreatment. The obtained results show that a low turn-on field (similar to 2.2 V/mu m) and an ultra high field emission Current density (0.4 A/cm(2) at 6.46 V/mu m) can be achieved through this novel structure of CNTs. |
URI: | http://dx.doi.org/10.1143/JJAP.46.859 http://hdl.handle.net/11536/11205 |
ISSN: | 0021-4922 |
DOI: | 10.1143/JJAP.46.859 |
期刊: | JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS |
Volume: | 46 |
Issue: | 2 |
起始頁: | 859 |
結束頁: | 862 |
顯示於類別: | 期刊論文 |