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-Feb-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
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