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:Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods
學年97
學期2
出版(發表)日期2009/04/01
作品名稱Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods
作品名稱(其他語言)
著者Shang, Naigui; Papakonstantinou, Pagona; Wang, Peng; Zakharov, Alexei; Palnitkar, Umesh; Lin, I-Nan; Chu, Ming; Stamboulis, Artemis
單位淡江大學物理學系
出版者Washington, DC: American Chemical Society
著錄名稱、卷期、頁數ACS Nano 3(4), pp.1032-1038
摘要We report the growth of ultrathin diamond nanorods (DNRs) by a microwave plasma assisted chemical vapor deposition method using a mixture gas of nitrogen and methane. DNRs have a diameter as thin as 2.1 nm, which is not only smaller than reported one-dimensional diamond nanostructures (4−300 nm) but also smaller than the theoretical value for energetically stable DNRs. The ultrathin DNR is encapsulated in tapered carbon nanotubes (CNTs) with an orientation relation of (111)diamond//(0002)graphite. Together with diamond nanoclusters and multilayer graphene nanowires/nano-onions, DNRs are self-assembled into isolated electron-emitting spherules and exhibit a low-threshold, high current-density (flat panel display threshold: 10 mA/cm2 at 2.9 V/μm) field emission performance, better than that of all other conventional (Mo and Si tips, etc.) and popular nanostructural (ZnO nanostructure and nanodiamond, etc.) field emitters except for oriented CNTs. The forming mechanism of DNRs is suggested based on a heterogeneous self-catalytic vapor−solid process. This novel DNRs-based integrated nanostructure has not only a theoretical significance but also has a potential for use as low-power cold cathodes.
關鍵字diamond nanorods; carbon nanotube; aberration-corrected TEM ;HAADF; PEEM ;NEXAFS; field emission
語言英文
ISSN1936-0851; 1936-086X
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者Shang, Naigui
審稿制度
國別美國
公開徵稿
出版型式紙本
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