期刊論文
| 學年 | 92 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2004-05-01 |
| 作品名稱 | Dependence of workfunction on the geometries of single-walled carbon nanotubes |
| 作品名稱（其他語言） | |
| 著者 | Chen, Chun-wei; Lee, Ming-hsien |
| 單位 | 淡江大學物理學系 |
| 出版者 | Institute of Physics (IOP) |
| 著錄名稱、卷期、頁數 | Nanotechnology 15(5), pp.480-484 |
| 摘要 | The effective workfunctions of single-walled carbon nanotubes of armchair (5,5) and zigzag (9,0) with various geometries have been calculated by first-principles calculations. The results show that the capped and H-terminated zigzag (9,0) carbon nanotubes exhibit a lower workfunction value than the armchair (5,5) nanotubes with a similar diameter. The open-ended (without H termination) (5,5) nanotube, on the other hand, shows a lower workfunction than the open-ended (9,0) structure. The former exhibits a significant formation of triple bonds at its mouth part after relaxation, which reduces the surface dipole and lowers its workfunction, the latter exhibits a higher density of unsaturated dangling bonds, raising its surface dipole and giving a higher value of workfunction. |
| 關鍵字 | electrical; magnetic and optical Surfaces; interfaces and thin films; Nanoscale science and low-D systems |
| 語言 | en |
| ISSN | 0957-4484 1361-6528 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | Chen, Chun-wei |
| 審稿制度 | 是 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | 電子版 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27697 ) |