| Autor: |
Mohamad Saufi Rosmi, Yazid Yaakob, Mohd Zamri Mohd Yusop, Subash Sharma, Zurita Zulkifli, Aizuddin Supee, Golap Kalita, Masaki Tanemura |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
AIP Advances, Vol 6, Iss 9, Pp 095109-095109-7 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
2158-3226 |
| DOI: |
10.1063/1.4962971 |
| Popis: |
This paper demonstrates a carbon-copper (C-Cu) composite nanostructure directly fabricated on a copper (Cu) substrate using the Ar+ ion irradiation method at room temperature. The morphology of C-Cu composite was controlled by a simultaneous carbon supply during ion irradiation. Conical protrusions formed on the surface of the Cu substrate with the low carbon supply rate (RC), whereas high RC area prominently produced nanoneedle structures. The field electron emission (FEE) tests demonstrated significant improvement between conical protrusions and nanoneedle structures, where the emission current increase from 5.70 μAcm−2 to 4.37 mAcm-2, while the turn-on field reduced from 5.90 to 2.00 Vμm−1. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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