Vertically-Aligned Single-Crystal Nanocone Arrays: Controlled Fabrication and Enhanced Field Emission
文献类型:期刊论文
作者 | Duan, Jing Lai1,2; Lei, Dang Yuan2; Chen, Fei2; Lau, Shu Ping2; Milne, William I.3; Toimil-Molares, M. E.4; Trautmann, Christina4,5; Liu, Jie1 |
刊名 | ACS APPLIED MATERIALS & INTERFACES |
出版日期 | 2016-01-13 |
卷号 | 8页码:472-479 |
ISSN号 | 1944-8244 |
关键词 | Ion Track Template Copper Single-crystal Nanocone Array Field Emission |
DOI | 10.1021/acsami.5b09374 |
英文摘要 | Metal nanostructures with conical shape, vertical alignment, large ratio of cone height and curvature radius at the apex, controlled cone angle, and single-crystal structure are ideal candidates for enhancing field electron-emission efficiency with additional merits, such as good mechanical and thermal stability. However, fabrication of such nanostructures possessing all these features is challenging. Here, we report on the controlled fabrication of large scale, vertically aligned, and mechanically self-supported single-crystal Cu nanocones with controlled cone angle and enhanced field emission. The Cu nanocones were fabricated by ion-track templates in combination with electrochemical deposition. Their cone angle is controlled in the range from 0.3 degrees to 6.2 degrees by asymmetrically selective etching of the ion tracks and the minimum tip curvature diameter reaches down to 6 nm. The field emission measurements show that the turn-on electric field of the Cu nanocone field emitters can be as low as 1.9 V/mu m at current density of 10 mu A/cm(2) (a record low value for Cu nanostructures, to the best of our knowledge). The maximum field enhancement factor we measured was as large as 6068, indicating that the Cu nanocones are promising candidates for field emission applications. |
WOS关键词 | Ion-track Membranes ; Nanowire Arrays ; Electron-emission ; Controlled Growth ; Carbon Nanotubes ; Vapor-deposition ; Copper Nanowires ; Cone Arrays ; Large-scale ; Emitters |
资助项目 | National Natural Science Foundation of China[11175221] ; National Natural Science Foundation of China[11474240] ; National Natural Science Foundation of China[11375241] ; National Natural Science Foundation of China[11179003] ; Hong Kong Research Grants Council (ECS)[509513] ; Hong Kong Innovation and Technology Commission (ITF)[ITS/196/13] ; West Light Foundation of the Chinese Academy of Sciences |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000368563000058 |
资助机构 | National Natural Science Foundation of China ; Hong Kong Research Grants Council (ECS) ; Hong Kong Innovation and Technology Commission (ITF) ; West Light Foundation of the Chinese Academy of Sciences |
源URL | [http://119.78.100.186/handle/113462/41501] |
专题 | 中国科学院近代物理研究所 |
作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China 2.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China 3.Univ Cambridge, Dept Engn, Elect Engn Div, 9 JJ Thomson Ave, Cambridge CB3 0FA, England 4.GSI Helmholtz Ctr Heavy Ion Res, Mat Res Dept, D-64291 Darmstadt, Germany 5.Tech Univ Darmstadt, Mat Sci, D-64287 Darmstadt, Germany |
推荐引用方式 GB/T 7714 | Duan, Jing Lai,Lei, Dang Yuan,Chen, Fei,et al. Vertically-Aligned Single-Crystal Nanocone Arrays: Controlled Fabrication and Enhanced Field Emission[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8:472-479. |
APA | Duan, Jing Lai.,Lei, Dang Yuan.,Chen, Fei.,Lau, Shu Ping.,Milne, William I..,...&Liu, Jie.(2016).Vertically-Aligned Single-Crystal Nanocone Arrays: Controlled Fabrication and Enhanced Field Emission.ACS APPLIED MATERIALS & INTERFACES,8,472-479. |
MLA | Duan, Jing Lai,et al."Vertically-Aligned Single-Crystal Nanocone Arrays: Controlled Fabrication and Enhanced Field Emission".ACS APPLIED MATERIALS & INTERFACES 8(2016):472-479. |
入库方式: OAI收割
来源:近代物理研究所
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