期刊論文
| 學年 | 100 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2012-06-01 |
| 作品名稱 | N-ion implantation of micro-nanocrystalline duplex structured diamond films for enhancing their electron field emission properties |
| 作品名稱（其他語言） | |
| 著者 | Panda, Kalpataru; Sundaravel, Balakrishanan; Cheng, Hsiu-fung; Horng, Chuang-chi; Chang, Horng-yi; Chen, Huang-chin; 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 | Surface and Coatings Technology 228, PP.S331-S335 |
| 摘要 | The improvement on the electron field emission (EFE) properties of duplex-structured diamond films by N-ion implantation/post-annealing processes was investigated. The duplex-structured diamond films were synthesized by a two-step microwave plasma enhanced CVD process. Transmission electron microscopy (TEM) examinations reveal that all the as-prepared, N-ion implanted and post-annealed diamond films contained large microcrystalline-diamond (MCD) aggregates sparsely distributed among the matrix of ultra-small diamond grains. While the granular structure of the MCD aggregates was insignificantly modified due to the N-ion implantation/post-annealing processes, that of the UNCD regions was markedly altered. The EFE process for the MCD/UNCD films can be turned on at (E0)MCD/UNCD = 8.21 V/μm, which is even smaller than the E0-field for the UNCD films ((E0)UNCD = 13.34 V/μm). These N-ion implanted/post-annealed diamond films attained an EFE current density of (Je)MCD/UNCD = 0.4 mA/cm2 at an applied field of 20.0 V/μm that is even larger than the Je-value for the UNCD films ((Je)UNCD < 0.05 mA/cm2 at the same applied field). Presumably, the enhanced EFE properties are resulted from the presence of nano-graphites in the small-grain region of MCD/UNCD films that form an interconnected path, facilitating the transport of electrons. |
| 關鍵字 | Composite diamond films; Electron field emission properties; Transmission electron microscopy |
| 語言 | en |
| ISSN | 0257-8972 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | Lin, I-nan |
| 審稿制度 | 是 |
| 國別 | CHE |
| 公開徵稿 | |
| 出版型式 | 紙本 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/78974 ) |