教師資料查詢 | 類別: 期刊論文 | 教師: 林諭男 I-nan Lin (瀏覽個人網頁)

標題:Fabrication of CNTs on Ni-cap electron emitters by using prenucleation technique
學年93
學期2
出版(發表)日期2005/03/01
作品名稱Fabrication of CNTs on Ni-cap electron emitters by using prenucleation technique
作品名稱(其他語言)
著者陳宜君; Chen, Yi-chun; Tsau, You-ming; Hsieh, Yun-shuo; Cheng, Hsiu-fung; 林諭男; Lin, I-nan
單位淡江大學物理學系
出版者Elsevier
著錄名稱、卷期、頁數Diamond and Related Materials 14(3-7), pp.758-762
摘要In this study, we have developed a novel technique for growing carbon nanotubes (CNTs) directly on Ni-caps. The gas phase nucleated CNTs were first deposited on the Ni-caps, followed by the growth of CNTs through a microwave induced heating process. In this process a specially designed substrate holder, W-coil on SiC cylinder, is used for resulting in rapid heating-up of the substrate via the absorption of the microwave power and forming appropriated temperature profile for the dissociation of ferrocene/CH4 prior to the formation of CNTs in gas phase in adjacent to Ni-caps. The as-nucleated CNTs are very small in size, about 10 nm in diameter and hundreds nanometer in length. The CNTs grew rapidly on the nuclei, to around 80 nm in diameter and several tens of micron in length, within 10 min. The CNTs exhibit large electron field emission capacity ((Je)g=5.8 mA/cm2 at 12.5 V/μm applied field) with (E0)g=8.0 V/μm turn-on field. The electron field emission properties of CNTs-coated Ni-caps are very stable after burn-in for a few voltage cycles. Thus formed Ni-caps can potentially be used as electron sources for cathode ray tubes (CRT).
關鍵字Carbon nanotubes;Electron field emission;MPECVD;Ni-caps electron source
語言英文
ISSN0925-9635
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!