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:Growth behavior of nanocrystalline diamond films on ultrananocrystalline diamond nuclei: The transmission electron microscopy studies
學年97
學期1
出版(發表)日期2009/01/01
作品名稱Growth behavior of nanocrystalline diamond films on ultrananocrystalline diamond nuclei: The transmission electron microscopy studies
作品名稱(其他語言)
著者Wang, Chuan-Sheng; Chen, Huang-Chin; Cheng, Hsiu-Fung; Lin, I-Nan
單位淡江大學物理學系
出版者College Park: American Institute of Physics
著錄名稱、卷期、頁數Journal of Applied Physics 105(12), 124311(7pages)
摘要Micron-crystalline diamond (MCD) films with a unique microstructure were synthesized using a modified nucleation and growth process, in which a thin layer of ultrananocrystalline diamond (UNCD) was used as nucleation layer for growing diamond films in H2-plasma. Thus obtained (MCD)UNCD diamond films consist of nanosized diamond clusters ( ∼ 10 nm in size) surrounding the large diamond grains ( ∼ 300 nm in size), exhibiting better electron field emission (EFE) properties than the conventional diamond materials with faceted grains. The EFE of these (MCD)UNCD films can be turned on at E0 = 11.1 V/μm, achieving EFE current density as large as (Je) = 0.7 mA/cm2 at 25 V/μm applied field, which can be attributed to the presence of large proportion of UNCD grains lying in between the MCD grains, forming an electron conduction path and thus facilitating the EFE process. Transmission electron microscopy examinations reveal that such a unique microstructure was formed by agglomeration and coalescence of the nanosized UNCD grains.
關鍵字
語言英文
ISSN0021-8979; 1089-7550
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者Cheng, Hsiu-Fung
審稿制度
國別美國
公開徵稿
出版型式紙本
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