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:Correlation between electron field emission property and in situ plasma spectroscopy for carbon nanotubes synthesized by using MPECVD method
學年94
學期2
出版(發表)日期2006/04/01
作品名稱Correlation between electron field emission property and in situ plasma spectroscopy for carbon nanotubes synthesized by using MPECVD method
作品名稱(其他語言)
著者Cheng, Hsiu-fung; 鄭秀鳳; Li, Chen-liang; Chen, Yu-wen; 林諭男; Lin, I-nan
單位淡江大學物理學系
出版者Lausanne: Elsevier S.A.
著錄名稱、卷期、頁數Diamond and Related Materials 15(4-8), pp.859-862
摘要Carbon nanotubes (CNTs) were grown on Fe needle by a modified microwave plasma enhanced chemical vapor deposition (MPECVD) process, in which the plasma was induced in the vicinity of the tip of Fe needle through the interaction of microwave and Fe needles. The spectra of plasma were in situ examined, indicating that Ar / CH4 ratio and total pressure remarkably affect the characteristics of the plasma spectra, which, in turn, correlated intimatedly with the electron field emission properties of CNTs. The presence of singly ionized carbons (CII) in the plasma is presumed to be the main factor facilitating the growth of CNTs, possessing good electron field emission properties. The maximum electron field emission current density is 8 mA/cm2 for carbon nanotubes grown at 10% CH4 and 300 Torr total pressure. The corresponding turn-on field (Eo) is 20 V/μm. Restated, the electron field emission properties of CNTs can be optimized by controlling the spectral characteristics of plasma.
關鍵字Carbon nanotubes; Electron field emission; MPECVD; In situ plasma spectroscopy
語言英文
ISSN0925-9635
期刊性質國外
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國別瑞士
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出版型式電子版
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