| Electron field emission of a nitrogen-doped TiO2 nanotube array | |
| Liu, Gang1,2,3; Li, Feng1; Wang, Da-Wei1; Tang, Dai-Ming1; Liu, Chang1; Ma, Xiuliang1; Lu, Gao Qing2,3; Cheng, Hui-Ming1 | |
| Corresponding Author | Liu, Gang() |
| 2008-01-16 | |
| Source Publication | NANOTECHNOLOGY
 |
| ISSN | 0957-4484 |
| Volume | 19Issue:2Pages:6 |
| Abstract | A nitrogen-doped titania nanotube array vertically aligned on a titanium substrate exhibits efficient electron field emission. Such a titania nanotube array shows very good stability at high field emission current (fluctuation <3% at field emission current of 160 mu A within 4 h) and low turn-on and threshold fields (11.2 and 24.4 V mu m(-1), respectively) because of the coexistence of doped nitrogen and concomitant oxygen vacancies in titania nanotubes. This work demonstrates the possibility of converting pure titania nanotubes without field emission into a favorable and efficient one through the introduction of acceptor states and donor states both above the valence band maximum and below the conduction band minimum in the band gap of titania by the doped nitrogen and concomitant oxygen vacancies, respectively. Application of this doping concept to other transition metal oxides can be expected to broaden the scope of field emission materials. |
| DOI | 10.1088/0957-4484/19/02/025606 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000252828900017 |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/94284 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Gang |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia 3.Univ Queensland, Australia Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia |
| Recommended Citation GB/T 7714 | Liu, Gang,Li, Feng,Wang, Da-Wei,et al. Electron field emission of a nitrogen-doped TiO2 nanotube array[J]. NANOTECHNOLOGY,2008,19(2):6. |
| APA | Liu, Gang.,Li, Feng.,Wang, Da-Wei.,Tang, Dai-Ming.,Liu, Chang.,...&Cheng, Hui-Ming.(2008).Electron field emission of a nitrogen-doped TiO2 nanotube array.NANOTECHNOLOGY,19(2),6. |
| MLA | Liu, Gang,et al."Electron field emission of a nitrogen-doped TiO2 nanotube array".NANOTECHNOLOGY 19.2(2008):6. |
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